Pathetic service by Sanlam Sky

I took out two funeral policies in 2019 without needing to submit any documentation. The process was effortless and both policies were active as soon as I paid my first premium. I've since updated a few details on the policies and again the process was effortless, just a one or two documents needed, great service. That's until I needed to cancel one....... I had to send a number of documents which included a bank statement which was strange as Sanlam had never needed this before seeing as the premiums were being deducted from my salary. I sent it nonetheless because the reasons stated was in case a refund is needed to be made. Needless to say Sanlam did deduct the premium after canceling the policy and now I need to submit a whole truckload of documents, Id copy, proof of residence, bank statements, proof that the money was deducted and I don't know what else!!!!! Mind you Sanlam has never had any of these documents including my ID copy but were happily deducting my salary without fail. I am really not happy that I am being inconvenienced when it is Sanlam that erroneously deducted the money and despite my many emails registering my displeasure, Sanlam is really not bothered with how pathetic its service has been! I am worried at the kind of service I am going to experience when I am actually have to submit a claim