Charges for BIS but uses DATA

My husband has got 3 contracts with 8ta (Telkom). He has upgraded to phones that is using DATA. Since he upgraded he has phoned the call center numerous times and even went in to the Telkom store at Lake side mall to cancel the BIS on his contracts as they are using DATA. Bear in mind this was from last year. Every time he phones they give him a reference number but that's it. We are talking about R118 extra every month that he is paying for something he's not using. They have send him a sms that said the BIS was canceled but did phone to let us know what is going to happen with the BIS that was deducted for all those moths.<br> It's no use phoning because they can do anything about it except lodes a complaint. They are quick to debit your account but when they take too much you don't year from them at all.<br> This is unexcitable.<br>