Poor customer service - OBF

I am a very disappointed and frustrated customer. Vodacom has an OBF terms and conditions in their contract that they don't adhere to. its just on paper but hey don't honor it. I upgraded one of my contracts with them on the 14th of October 2020, its almost a month later and I have generally not had a phone. I am instead sitting with 3 job numbers and no phone. the 1st Job number was an OBF which they rejected - said they found no issues. phone still gave issues and I took it back - they upgraded software and gave it back but intermittent disconnections not resolved. I have taken it back again and its been with them for the whole week and they tell me its been escalated. so by Monday it will be a full month with a phone I have barely used and guess what - I still have to pay for a month of zero... I have been with vodacom for 18 years, I have multiple contracts, one of them a RED plan which they claim is VIP??? but this is the treatment we get - I have to spend the whole month proving that phone they sold me has problems???