That should never happen.

The game and cc information are and should be handled by entirely different companies, with data segregated to each. Plarium need not know my details, they only need confirmation from their credit card handler that payment for X was received. Full stop.

Send a ticket to support, KaW Support - Create Ticket  - I am quite sure they would be interested in anyone having difficulty sending them money. :-)

There may be several reason you want to change the port https://testmyspeed.onl/ but for me its WAMP, I am using it for PHP projects. IIS and WAMP use same port which make trouble developing.