Move domain to the new address

Hello,
I use Pro plan for my page www.mravecshop.sk. I have move my page to new domain www.mravec.sk. It is possible change domain in my pro plan ? or I must create new plan for new domain and activate pro plan for this domain ? and cancel payment for mravecshop.sk ?
thank you for answer.

Precisely that.

Thank you . and it is sad…