Cancelling an Upgrade

so furious with Vodacom right now, I cancelled my upgrade on the 20th June (Samsung A30s,they didnt tell me the phone accept only 1 sim card they have disabled the second sim slot ) and I was told its been cancelled and the device will be collected within 14 days from me..today its the 15th day so I called them to check why its yet collected, I spoke to 5 Vodacom Agents all of them saying they are transfering me to the relevant department because they cant see anything that says I have requested a cancellation so since I made the upgrade online they will transfer me to the online department, they played me transfering around up untill I noticed that am being sent to the same departments I spoke to before, I've been a good paying customer to Vodacom this is so unprofessional of them!!