Yesterday I faxed/mailed/emailed a letter stating they couldn't debit my checking account and not to call, only contact me via email and USPS. Now I know this was falling on deaf ears right from the start. But, I had to at least try.
So this evening, they called my cell. By the time I googled the telephone number, they had hung up. Then they called the landline, but i was unable to answer the call at that time. Then just for the heck of it, I checked my voicemail at work. They called there too! They didn't leave any messages, though.