Billed Twice After Cancelling Debit Order!

I cancelled my debit order on the 27th of May, the call centre agent i spoke to advised me it had been cancelled.<br> I also payed my Telkom on the same day via credit card. On the 1st of June, my account got DEBITED after I CANCELLED MY DEBIT ORDER!!<br> <br> I called Telkom, I was on hold for 20 minutes before somebody answered,<br> The lady I spoke to wasnt too informative regarding what'll be done to correct the situation - she did however acknowledge the fact that two payments were made.<br> She advised me to hold while she checks why my debit order wasnt cancelled.<br> When i was taken off hold, a guy from Telkoms technical department answered & didnt know what was going on, he put me through to billing & i am STILL on hold <br> <br> It has been OVER AN HOUR!!!!!!