Call 1-855-4pu-blic and enter their numbers (if you have them) and find their renewal dates. If your credit card has a pause function then on the evening before that date, pause the credit card. Then the next day unpause it. This will not let the autopay function work and suspend the account. Then 90 days later the account will deactivate.
Do you still have the sims? You could do the same with 611.
If you don't have the sims and you don't know the numbers then you could also see the charge dates on your credit card and do the pause around those couple days.
Failing all that then all you can do is plead with the support people to stop the accounts. You'll need to provide verifying information for them to know its a rightful person.
