Somebody's not doing their job!

Dear CellC This will be the 3RD month I have received an SMS informing me that a debit order will be going off on the 15th. As of my previous calls to the call centre I have been informed that the problem was resolved.

If the problem was resolved, why are there still attempts and sms's for the 15th. I will cancel my latest contract and return the device should this problem not be resolved soon. I am highly disappointed as I've never had this problem before with you at CellC. And as a loyal customer for over several years, I would've expected better service.