diff --git a/contracts/TransmuteDPOS.sol b/contracts/TransmuteDPOS.sol
index afee2a8..c1dbf5f 100644
--- a/contracts/TransmuteDPOS.sol
+++ b/contracts/TransmuteDPOS.sol
@@ -62,7 +62,6 @@ contract TransmuteDPOS is TransmuteToken, RoundManager, ProviderPool {
       addProvider(msg.sender, p.totalAmountBonded);
       emit ProviderAdded(msg.sender, _pricePerStorageMineral, _pricePerComputeMineral, _blockRewardCut, _feeShare);
     } else {
-      updateProvider(msg.sender, p.totalAmountBonded);
       emit ProviderUpdated(msg.sender, _pricePerStorageMineral, _pricePerComputeMineral, _blockRewardCut, _feeShare);
     }
     p.status = ProviderStatus.Registered;
@@ -72,7 +71,7 @@ contract TransmuteDPOS is TransmuteToken, RoundManager, ProviderPool {
     p.feeShare = _feeShare;
   }
 
-  function resignAsProvider() public {
+  function resignAsProvider() external {
     require(providers[msg.sender].status != ProviderStatus.Unregistered);
     removeProvider(msg.sender);
     delete providers[msg.sender];
@@ -83,11 +82,15 @@ contract TransmuteDPOS is TransmuteToken, RoundManager, ProviderPool {
     Provider storage p = providers[_provider];
     // A delegator is only allowed to bond to an Unregistered provider if the provider is himself
     // otherwise _provider has to be associated with a Registered provider
-    require(_provider == msg.sender || p.status != ProviderStatus.Unregistered);
+    require(_provider == msg.sender || p.status == ProviderStatus.Registered);
     // Check if delegator has not already bonded to some address
     require(delegators[msg.sender].delegateAddress == address(0));
     this.transferFrom(msg.sender, this, _amount);
     delegators[msg.sender] = Delegator(_provider, _amount);
     p.totalAmountBonded = p.totalAmountBonded.add(_amount);
+    // Update the bonded amount of the provider in the pool
+    if (p.status == ProviderStatus.Registered) {
+      updateProvider(_provider, p.totalAmountBonded);
+    }
   }
 }
diff --git a/test/TestTransmuteDPOS.spec.js b/test/TestTransmuteDPOS.spec.js
index 87ca883..0b74e04 100644
--- a/test/TestTransmuteDPOS.spec.js
+++ b/test/TestTransmuteDPOS.spec.js
@@ -140,19 +140,12 @@ contract('TransmuteDPOS', accounts => {
       await assertFail( approveBondProvider(20 ,10, 2, 25, 1, accounts[5]) );
     });
 
-    it('should update the value of totalBondedAmount in the providerPool if the provider is Registered and size < maxSize', async () => {
-      // Check that provider is Registered
-      assert.equal(true, await tdpos.containsProvider(accounts[3]));
-      // Check the size of the pool stays the same
-      let providerPool = await tdpos.providerPool.call();
-      const previousSize = providerPool[3]; // [3] is current size of the pool
-      await tdpos.provider(19, 10, 2, 20, {from: accounts[3]});
-      providerPool = await tdpos.providerPool.call();
-      assert.deepEqual(previousSize, providerPool[3]);
-    });
-
     it('should work if provider is Registered and size == maxSize', async () => {
+      let provider = await tdpos.providers.call(accounts[4]);
+      assert.equal(20, provider[1]); // [1] is pricePerStorageMineral
       await tdpos.provider(21 ,10, 2, 25, {from: accounts[4]});
+      provider = await tdpos.providers.call(accounts[4]);
+      assert.equal(21, provider[1]);
     });
   });
 
@@ -267,11 +260,26 @@ contract('TransmuteDPOS', accounts => {
     it("should transfer amount from the delegator's balance to the contract's balance", async () => {
       const contractBalance = (await tdpos.balanceOf(tdpos.address)).toNumber();
       assert.equal(1000, await tdpos.balanceOf(accounts[9]));
-      await tdpos.approve(contractAddress, 300, {from: accounts[9]});
       await tdpos.bond(accounts[1], 300, {from: accounts[9]});
       assert.equal(700, await tdpos.balanceOf(accounts[9]));
       assert.equal(contractBalance + 300, await tdpos.balanceOf(tdpos.address));
     });
+
+    it('should not affect the providerPool if provider is not registered', async() => {
+      assert.equal(false, await tdpos.containsProvider(accounts[2]));
+      await tdpos.approve(contractAddress, 300, {from: accounts[2]});
+      await tdpos.bond(accounts[2], 300, {from: accounts[2]});
+      assert.equal(false, await tdpos.containsProvider(accounts[2]));
+    });
+
+    it('should update the totalBondedAmount of the provider in the providerPool if he is already registered', async () => {
+      let provider = await tdpos.getProvider.call(accounts[0]);
+      let previousBondedAmount = provider[0].toNumber(); // [0] is bonded amount
+      await tdpos.approve(contractAddress, 300, {from: accounts[7]});
+      await tdpos.bond(accounts[0], 300, {from: accounts[7]});
+      provider = await tdpos.getProvider.call(accounts[0]);
+      assert.equal(300 + previousBondedAmount, provider[0]);
+    });
   });
 });