keep paying for 2 sim cards with airtime

I app**** for 2 top up contracts for my kids a few months ago. After receiving and doing the necessary activation payments and setting up a debit date for the 25 of each month!!!!! I have this stupid bank debit my account on the 19th 20th and 23rd of some months causing my debits to bounce ,as i on get paid on the 25th as specified to the consultant. As per my contract states i should receive airtime data and sms's every month \which i haven't since I've had the contracts set up'. After calling the useless call center a consultant named Gladwin ensured me that he would solve my problem. 1 and a half weeks later and numerous calls to the call center i haven't received and feedback what so ever. No managers or supervisors are ever there to speak to me even when i insist on talking to a manager or supervisor. after getting billed now once again last month on the 21st October 2015 up till today the 29th October i still haven received any airtime or data or sms