Subscription need to transfer to another user for a company account

My current company was having quickbooks together with my partners account as a sub company in his quickbooks account. He did not renew the subscription for this company and can't see any details in his login anymore for the company. on my login which was a user i can see all the previous details on my app in the phone but i cannot see anything when i login online. i also cannot edit the subscription as it is associated to his account. How do i solve this problem.

Thanks,