Data contract cancellation nightmare

Telkom is so frustrating and useless. The agent at the store put in a cancellation of my data contract on the 22nd of July , for end of July . But when I checked on the 1st of August, it was still active. I called telkom customer care to notify them. The agent told me it wasnt put through, she will put it through for me. BUt then again on Saturday night, I checked and the contract was still on active. I called customer care again, the other agent told me customer care does not do cancellations anymore and the agent I spoke to was misinformed. She just said I should do it myself via the website or app. I tried with her on the app and she failed to assist me. We tried on the website and she still failed. I did it myself afterwards and got a CASE no on Saturday night. Sunday I even went back to the store, cancellation is still not done!