CELL C and R50 WOES

The R50 story: I attempted to change my prepaid plan for ultra bundle to 66c using the USSD, which gave an error message Invalid. I contacted the call centre this afternoon and the operator confirmed the plan change to 66c. The plan was not changed and I purchased R50 airtime (I'm unemployed). Realising the plan was not changed, I contacted the centre again (2) a couple of hours later and explained the situation, but the agent couldn't change the plan and transferred me to the Tech dept, who couldn't assist and they transferred me back to another customer service agent. Obviously the guy couldn't help me and I requested a supervisor. None were available and I was promised a call back within 10min, which obviously did not happen. I called again 30min later to explain the situation a fourth time and then one last time when I got the supervisor. The lady couldn't resolve the issue due to a depleted voice bundle that I still have. She offered to escalate the issue to cancel the depleted bundle, which will take 24 hours or more. I declined the offer. All agents and staff were polite and tried to assist, but I think more training is required. Even I thought that the problem was the depleted bundle, as I informed them on each call. You may think the R50 story is petty or just silly. Delivering pizzas every evening and make 5 second calls.. just to ensure my children's child support is paid (I was retrenched before Covid).. Yeah, R50 is R50.