Automatic payment keeps declining, going on over a year now, constantly told it is my fault.....

So, back in early 2019, I received an email from Dave/Simplisafe saying my credit card on file declined the automatic monthly charge. I called Simplisafe right away, and told them to just try it again as I have had no issues with that card, and it was immediately approved. I figured it was just a glitch, no big deal. The next month, same email. Again, I called Simplisafe, they ran my card again, all is good. I explained that this was the second time, and they advised I call my bank to see why they rejected the automatic payment. I called the bank, they had no record of the charge, so nothing the bank could do. Again, maybe just a glitch, forgot about it. Next month, same email. Called again, told the same thing, explained the bank did not even see the transaction, must be something on Simplisafes side. They manually ran the card, approved, they will look into it. To cut a long story short, this went on every month, many, many calls and discussions, always coming back to it's my fault. Simplisafe rep deleted the card (as you cannot do that on the website), and re-added it, no change, the same old automated email from Dave from Simplisafe... In November 2019, after numerous "I need to speak to a Manager" requests (every month), I finally spoke to Evania, who seemed to actually care and listen instead of just blowing me off and insisting it was my issue. Evania looked into it, and called me back the next day saying that she found the problem, for some reason my card on file was only authorized for refunds, not debits. Evania assured me the issue was fixed, and even gave me 3 months free for all the troubles! Roll on after 3 months to February 2020, and guess what, I get an email from "Dave" saying my payment was declined & to update my payment method!! I respond to the email that this is a really frustrating ongoing issue, and to speak with Evania or check my notes. No response. I get the second email, so call Simplisafe, and am told again it is my bank, even though I explained I already called them and they do not see it. I ask to speak to a supervisor again, and someone calls me back the next day. In the meantime, I call my bank yet again just to make sure, no record of the transaction. The supervisor (didn't note her name) insists it is my fault, tells me my card is bad, even though I explain it works everywhere else, it cannot be the card, etc... She then tells me I need to just add a new card, no one is available to escalate above her, and hangs up on me.... Roll on April, same email. Call and spoke to Lornie, very nice, very apologetic, deletes and re-adds the card as assures me it won't happen again. Just got the email, card declined. I am sure I am not the only one experiencing this issue. I could add another card, but I don't have another card to add, and to be honest, I shouldn't have to. Anyone else experiencing this problem or the inefficiency of support? I am a Customer Support Manager for a major software company in Boston myself, I just wish there was a survey option after every call, as I have made a lot of calls with dissatisfied results....