I signed up for a membership service with an HVAC company some time ago, and I've now decided its time to cancel my membership due to lack of use.
There isn't a nearby customer center where I live, so I attempted to cancel the membership a few times by phone. I soon caught on that the company doesn't intend to cancel my membership before I am automatically billed for another year of service; every phone call typically devolves into a high-pressure sales pitch for me to stay, or they hang up on me after I get put on hold.
Furthermore, I signed up accidentally for the membership -- having not read the fine print of the installation contract for my new HVAC -- so I am now worried that a verbal confirmation of cancellation over the phone will not be honored.
In the contract I signed, the following text appears:
I hereby authorize FooBar herein after called Company, to initiate debit entries to my account. This authorization is to remain in full force until Company received written notification from me of its termination in such time and in such manner as to afford Company a reason able opportunity to act on it (30 days).
I want to be safe and send a written notification from me requesting termination of my membership. However, I am afraid of the company claiming to have never received my written notification. I could send the written notification through certified mail, but that would only prove that the company received a letter from me and prove nothing of the contents within.
How do I prove the contents of the letter I sent is actually the contents of the letter a party received?