I cancelled the Xfinity mobile account in July and am still getting charged in October.

I cancelled my Xfinity mobile account in July. I have chat records that state my account was cancelled. I even was refunded in July because I had cancelled in May and was charged in error. When I call or look at my online account, it says I have no existing account. In fact, it is really difficult to speak to an agent because when I call, my account number doesn't work. However, I have been charged twice since cancellation. I've disputed with my credit card company and received refunds, but I want Xfinity to stop charging me, period. It's also very strange because I was charged in August, and then charged in October, so it's not even consistent. I would like my account to be fully deactivated and my card information to be deleted. I never actually wanted the mobile service in the first place, it came with the internet so I've never even used the mobile service, nor do I even have a mobile number with Xfinity. This just feels like such a terrible business practice.