Won't cancel bebit order third party needed

I've tried to cancel a debit order for R99. Went to the Woodbridge branch, they told me I could do it over the app. Canceled it many times, yet it goes through every month. Eventually FNB tells me a third party has to cancel it. I have given the gym verbal notice in November, yet every month has R99 deducted by them, only now I can't even reverse is anymore on the app. How can you as a bank not cancel it. It's R200 "******" from me now and you guys just shrug your shoulders. I'm pretty sure Capitec or any other bank for that matter would love my private account as well as my business account that is with FNB. I suggest you do something or they will het my business.

Another thing, I've told you many times to NOT PHONE me as I will not answer if my phone tells me it's SPAM... And unfortunately FNB comes up as that and currently I cannot agree more