Incorrect Debit / Prepaid Convertion

I have canceled this contract *** on the 30th of Jan below is the reference number received

Ref no ***

Subsequently the data and airtime was reversed at the end of February but the debit order went through... meaning I was billed at the end of Feb

Again at the end of March I was billed but received no airtime or data

Please contact me asap on ***

I will be stopping any debit orders from mtn with immediate effect

Also please advised as to when will I be refunded in cash for Feb and March

Ps your customer care line is offline... I cannot speak to a consultant

Further more after sending the above email I have only recently a response requesting info to validate my account nothing further

BTW the above email was sent on the 3rd of April