Not on the phone but I had to threaten the Bitdefender E-Mail rep with a lawsuit in order to get my money back.

A few months into my 2 year subscription I changed my e-mail associated with my Bitdefender account. Thereafter all mail I got from them went to that new email, as it should. A short while after that I switched over to Linux and my "need" for an AntiVirus evaporated entirely between Linux' workflow not really requiring one anyway and me learning how little AntiVirus Software offers over the default Windows Defender. Queue forward to the end of that 2 year subscription (whose auto-renewal I had disabled before leaving Windows exactly to prevent what happened anyway but alas I have no proof of that anymore) I notice a really weird charge while reviewing my credit card statement. A charge that by all accounts should not have been there and one I was not made aware of beforehand. Guess what, those fucks sent only the mail about the upcoming renewal to the old email account which I had no reason whatsoever to suspect would still receive mail from them. Curiously the mail about them cancelling the renewed charge after I went off on them was sent to the new email again...

Initially the customer service said "oh well can't do anything here's a 50€ discount" until I lost my cool and threatened to sue them for theft because by all reasonable standards I could not have expected them to inform me on my old email about this upcoming charge.

On that note my stance was reaffirmed: Between and AntiVirus and an actual Virus I'd pick the latter, at least those are upfront about their motives and intentions instead of pretending to provide you with a service.