Bids dandy

I bid for s Jairo copter and won it was $2.50 plus shipping costs. 4 days later they billed my PC MASTERCARD FOR $127.00 I emailed them to ask for a refund but to no avail then 30 days later I was billed $132.00 I asked them to cancel my account immediately and got a reply that someone would be getting back to me within 72 hours that was a month ago still no refund it's now July and PC MASTERCARD ISNT MUCH HELP EITHER