Logged users - cant estimate shipping price

[mageuser]

Hello, i'm having an issue, when user register for first time and go to cleancheckout and fill the fields, my module call api to estimate price of shipping. But when a user is already logged in and has a registered address, its doesn't estimate anymore.

You can check it at live production site: www.hortibras.com, i tought it was fault of estimate-shipping-methods , but its called when user is already logged.

I got zipcode by $request->getDestPostcode();

Its seen this action inst been called: $result = $this->_rateResultFactory->create();