I'm having trouble using the account.

I’m having trouble using the account.
I have paid for the account: fo501.infusionsoft.com
Money deducted in my card account.
However infusion sent to my email is another account. Specifically: fp506.infusionsoft.com
Right now: fo501.infusionsoft.com is not authentically authenticated. This led to my campaigns being stopped.
I would like to consider for some reason that there is a mistake here. I still want to use the account: fo501.infusionsoft.com.
This account fp506.infusionsoft.com is not mine.