Bad service

Good day, i had been with Vodacom for they past 6 to 8 years, but the service i got now from them its really irritating me, i upgraded my contract with them on the 26-11-2018 and received the phone for 2 weeks.. From there the phone was not charging anymore and i had to return it back to them, i logged a call on the 10-12-2018 and the phone was collected by the ram from me on the 18-12-2018,..i was told that on Friday the 21-12-2018i can log a call so my contact can be reversed and i can re do my upgrade which i did as i was told,, but every time when i call i was told that the phone is not received by them till i follow up with RAM, after ram confirmed the delivery of the phone, vodacom told me they are waiting for the ref number from their warehouse, still i kept calling but just promises but nothing happened, on the 27-12-2018 i called again and thats when i was told i should go and deactivate my find my iphone then everything will be sorted which also i did over the night in vodacom store, today i called in again still the phone is not with them they are waitefor the reference before everything, so my question to them is because i am having the sim card what am i expected to do with it because i do not have a phone.. Secondly why their consultants dont be honest with us cause everytime they made me feel as if the matter is getting resolved while not, and they like to promise to call while knowing they wont, Can anyone from vodacom help me with this matter as i am not happy and will never be happy as long this matter is not resolved My numbers are ********** 937 and ********** 060 My name is Oscar