Attempted Unauthorized Debit Order

Yesterday, I received a notification from my banking app of a new debit order that was allocated to my bank account for absolutely zero reason.

An amount of R159.26 to be deducted on the 16th of each month - contract ref no ***M.

No email received prior to this attempted debit order, which I have declined.

What is going on? Why are Telesure trying to take MORE money from me without any form of notification beforehand?

Very, very ***** behavior from an "authorized financial services provider".

Do not call me. I will NOT answer. You have my email address - best you get a hold of me there as I want to hear what you say in black and white and not over the phone where there is zero accountability.