Can ADT ever get something right the first time

On the 01-04-2018, i sent ADT an email with my new banking details, ADT confirmed in writing on the 05-04-2018 that the banking details have been amended.

Lo & Behold on the 25-04-2018 there was a debit raised to my old account and i incurred costs to the amount of R50.44,

I sent an email to ********** the very same day with no response to date, i even copied Kelvin Ntuli, I than called in and spoke to Denzil and he advised me that the debit order details were only changed for the end of May 2018, no one told me this or else i would have funded the old account. I than made a manual payment to my account on the 02-05-2018. Denzil confirmed that he had received proof of payment. On Friday i received an SMS from ADT that my Absa account is going to be debited again, i dont know why, i email Denzil and no reply from him.

This morning ADT went and debitted my account again??? Why?? i made a manual payment and my bank details have been amended, i know incurred another debit order rejection fee and my ITC record gets affected for your incompetence.

Can someone please help