Supersonic *****s money

Used my credit card to recharge my account with 25gigs, after complaining here they finally topped up my account, but come month end they billed me again for the R150 added to my normal bill, the same R150 that I paid from my credit card on the 20th August, spoke to them, they asked for the proof of payment, of which I sent, to this day I have not been refunded the R150.