Vodacom service poor!!!!!!

I upgraded my contract to a IPhone 16 Pro,2 months later the phone is overheating and battery draining fast. I took the phone to Vodacom Greystone crossing and the phone is booked in for repairs.Why do I have to have my new I phone repaired?.It should be replaced. The staff at the repair desk told me that I could get a loan phone but if there was any damage on the phone I would have to pay for the phone between R3000-R5000.I was not happy with the way I was spoken to by the gentleman at the repair desk,he was rude and uninterested to help me.