BEST BUY BLACK TIE PROTECTION Cancellation process is almost unbearable Internet

I called to cancel my black tie protection on (3) cell phones 2 @ 9.99 a mo. and 1 @ 14.99 on 5/20, and received a cancellation confirmation email on 5/23. I was promised a full refund for the month of May because it was cancelled prior to billing date on May 23rd. I again was billed on 6/5, I called company they again gave a new confirmation number and stated I would receive  a refund for May and June and it would take again 7-10 days to process.

I received (1) refund of 14.99 for a iphone on june 8th. I had to call again due to being billed for the other two phones and where was my refund from them???

I went to best buy where I purchased the phones and the black tie protection and was there 2 hours with a associate, she had to go through the same process I go through at home in trying to solve the issue.

At this point I am $105.00 ver billed for something I have been trying to cancel for (3) months.

Each time, spending hours on the phone writting my notes and confirmation numbers down.

This is a ridiculous process, I may need to cancel my ATM card just to get these people to stop billing me.