Vodacom repairs terrible service. Weeks without phone

I upgraded my account to get a note 9. Two days laterni experienced terrible screen reactions. Some areas would be nonresponsive and other areas would be hypersensitive which made the phone unuseable. So i brought it back. You guys told me it had to be booked in for obf. I said to your staff i dont trust that they will fix anything. Its still within 7 days. Just give me a new phone. But no they insisted. I got the phone back 2 days ago and immediately found the same issue persisted. Now im back in your century city branch and you want to obf again. Ive not had a working phone since the 13th. This is disgusting service... these phones retail for. Im not blaming any of the branch staff. Its your rediculous low value for your customers that is the problem.