Domain change, account issues

Hello, we finally migrated to our new server. As part of the payplans update and migration, I would kindly request that you update my subscription so that the license is valid for https://www.fishbuoy.com and https://fishbuoy.com

I tried to do this myself but your system is saying my subscription is no longer valid - which is untrue because I just bought the upgrade.

Please let me know how to ensure the smooth license is assigned to the correct domain?

Thanks

Martin