Policy 69662P*** and *** - Cancel debit orders, and provide cancellation letter for both

I have two funeral covers with old mutual. which I have called and requested that they both get cancelled. I then requested a cancellation form, which I am now sent from one pillar to post. I have made three calls this morning with no help. I am not surprised as even when I claimed it was not paid within 48 hours, It was paid after three weeks and we had already made plans. This is why I want to cancel because I don't want the same issue I experienced back then. can I have the cancellation letter for *** and 69662P***? It is urgent, and should anything happen to the people insured, you will be liable because I do not know what the hold is now. Worse, you debited the amount, and from your WhatsApp, it still shows that my next debit date is October. How as I have cancel? You are just a bad financial institution, and I can't deal with calling you all the time for the damn cancellation letter, I am entitled to have. Every day you are escalating. Are you even following up? I use my time and my airtime for calls; I don't have time for calling you all the time. Do your damn job pls