diff --git a/src/Client/Client.php b/src/Client/Client.php
index 9086cb4..c8a2dc9 100644
--- a/src/Client/Client.php
+++ b/src/Client/Client.php
@@ -9,7 +9,6 @@
 use Setono\GLS\Webservice\Response\Response;
 use SoapClient;
 use SoapFault;
-use RuntimeException;
 
 final class Client implements ClientInterface
 {
@@ -23,9 +22,27 @@ public function __construct(SoapClient $soapClient)
         $this->soapClient = $soapClient;
     }
 
-    public function getAllParcelShops(string $countryIso): array
+    public function getAllParcelShops(string $countryCode): array
     {
-        throw new RuntimeException('Method not implemented. Please do so in a pull request on GitHub ;)');
+        $response = $this->sendRequest('GetAllParcelShops', [
+            'countryIso3166A2' => $countryCode,
+        ]);
+
+        $parcelShops = [];
+
+        if (200 !== $response->getStatusCode()) {
+            return $parcelShops;
+        }
+
+        if (null === $response->getResult()) {
+            return $parcelShops;
+        }
+
+        foreach ($response->getResult()->GetAllParcelShopsResult->PakkeshopData as $parcelShop) {
+            $parcelShops[] = ParcelShop::createFromStdClass($parcelShop);
+        }
+
+        return $parcelShops;
     }
 
     public function getOneParcelShop(string $parcelShopNumber): ParcelShop
@@ -42,22 +59,62 @@ public function getOneParcelShop(string $parcelShopNumber): ParcelShop
         return ParcelShop::createFromStdClass($response->getResult()->GetOneParcelShopResult);
     }
 
-    public function getParcelShopDropPoint(string $street, string $zipCode, string $countryIso, int $amount): array
+    public function getParcelShopDropPoint(string $street, string $zipCode, string $countryCode, int $amount): array
     {
-        throw new RuntimeException('Method not implemented. Please do so in a pull request on GitHub ;)');
+        $response = $this->sendRequest('GetParcelShopDropPoint', [
+            'street' => $street,
+            'zipcode' => $zipCode,
+            'countryIso3166A2' => $countryCode,
+            'Amount' => $amount,
+        ]);
+
+        $parcelShops = [];
+
+        if (200 !== $response->getStatusCode()) {
+            return $parcelShops;
+        }
+
+        if (null === $response->getResult()) {
+            return $parcelShops;
+        }
+
+        foreach ($response->getResult()->GetParcelShopDropPointResult->parcelshops->PakkeshopData as $parcelShop) {
+            $parcelShops[] = ParcelShop::createFromStdClass($parcelShop);
+        }
+
+        return $parcelShops;
     }
 
-    public function getParcelShopsInZipCode(string $zipCode, string $countryIso): array
+    public function getParcelShopsInZipCode(string $zipCode, string $countryCode): array
     {
-        throw new RuntimeException('Method not implemented. Please do so in a pull request on GitHub ;)');
+        $response = $this->sendRequest('GetParcelShopsInZipCode', [
+            'zipcode' => $zipCode,
+            'countryIso3166A2' => $countryCode,
+        ]);
+
+        $parcelShops = [];
+
+        if (200 !== $response->getStatusCode()) {
+            return $parcelShops;
+        }
+
+        if (null === $response->getResult()) {
+            return $parcelShops;
+        }
+
+        foreach ($response->getResult()->GetParcelShopsInZipcodeResult->PakkeshopData as $parcelShop) {
+            $parcelShops[] = ParcelShop::createFromStdClass($parcelShop);
+        }
+
+        return $parcelShops;
     }
 
-    public function searchNearestParcelShops(string $street, string $zipCode, string $countryIso, int $amount = 10): array
+    public function searchNearestParcelShops(string $street, string $zipCode, string $countryCode, int $amount = 10): array
     {
         $response = $this->sendRequest('SearchNearestParcelShops', [
             'street' => $street,
             'zipcode' => $zipCode,
-            'countryIso3166A2' => $countryIso,
+            'countryIso3166A2' => $countryCode,
             'Amount' => $amount,
         ]);
 
diff --git a/src/Client/ClientInterface.php b/src/Client/ClientInterface.php
index 3302b67..504c5b6 100644
--- a/src/Client/ClientInterface.php
+++ b/src/Client/ClientInterface.php
@@ -15,11 +15,11 @@ interface ClientInterface
     /**
      * Returns all ParcelShops in a given country.
      *
-     * @param string $countryIso The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
+     * @param string $countryCode The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
      *
      * @return ParcelShop[]
      */
-    public function getAllParcelShops(string $countryIso): array;
+    public function getAllParcelShops(string $countryCode): array;
 
     /**
      * Get one ParcelShop.
@@ -37,22 +37,22 @@ public function getOneParcelShop(string $parcelShopNumber): ParcelShop;
      *
      * @param string $street
      * @param string $zipCode
-     * @param string $countryIso The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
+     * @param string $countryCode The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
      * @param int    $amount
      *
      * @return ParcelShop[]
      */
-    public function getParcelShopDropPoint(string $street, string $zipCode, string $countryIso, int $amount): array;
+    public function getParcelShopDropPoint(string $street, string $zipCode, string $countryCode, int $amount): array;
 
     /**
      * Returns all ParcelShops in a zip code - or the 3 nearest in other zip codes.
      *
      * @param string $zipCode
-     * @param string $countryIso The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
+     * @param string $countryCode The alpha 2 country code (https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes)
      *
      * @return ParcelShop[]
      */
-    public function getParcelShopsInZipCode(string $zipCode, string $countryIso): array;
+    public function getParcelShopsInZipCode(string $zipCode, string $countryCode): array;
 
     /**
      * Search for nearest ParcelShops to an address.
@@ -62,10 +62,10 @@ public function getParcelShopsInZipCode(string $zipCode, string $countryIso): ar
      *
      * @param string $street
      * @param string $zipCode
-     * @param string $countryIso
+     * @param string $countryCode
      * @param int    $amount
      *
      * @return ParcelShop[]
      */
-    public function searchNearestParcelShops(string $street, string $zipCode, string $countryIso, int $amount): array;
+    public function searchNearestParcelShops(string $street, string $zipCode, string $countryCode, int $amount): array;
 }