Unauthorised debit order

For the 1st time in a long time I checked my statement as my debit order runs every month off my account.

I saw that it shows that I am in arrears by one month. Phoned MTN and asked what the story is. I was told that my April Months payment was not received. I checked on my proof of payment and forward the proof of this payment.

The guy I spoke to send me an e-mail asking for the proof of payment in PDF format that I send to him a day or 2 later. This morning I note that MTN did try and debit my bank account with an unauthorised debit order that was rejected.

Now my credit record is affected by MTN that is not doing their work like it is supposed to be. I have unpaid charges on my account. This is not on. I was told this morning that yes, they did receive the proof of payment unfortunately it will take 48 to 72 hours to rectify. I would like to place on record that MTN is in breach of contract.