Hi @onurhan , welkome at the community.
A moving can be arranged online. There is an information page which Google can translate.
Main things are, you login to your my-tmobile and check what subscriptions can be created at your new zip code. That is leading if the same service can be offered there.
Do not forget to apply for "klantenvoordeel" if applicable for you, once the new connection is delivered. That is not transferred automatically.
Hello @onurhan
Because you need a new contract for your new house, the costs for internet could be more than what you are paying now. Read this topic for more information:
https://community.t-mobile.nl/nieuws-552/nieuw-portfolio-2022-t-mobile-voor-thuis-338684