Worst service ever from Telkom

I am absolutely disgusted with service from Telkom,firstly the network is pathetic to say the least. Buffers on 4G!!!! I tried to cancel my data contract on the 14th March 2018 by emailing my cancellation form,one month later nothing is done and I get emails of upgrading my contract??????? I correspond with Telkom via Twitter and I get another email address to which I resubmit my cancellation form ********** was on the 23rd of April. It’s already June and my account still gets debited each month. Why should I let go of my hard earned money on a lousy product I don’t want or need? I will be stopping my debit order after this month. I am sick of Telkom Quick to bill,slow to resolve!!! Worst service ever!!!!!