Vodacom Bad repair service

Job # *** I have paid for my cracked screen to be repaired at the Witbank Branch in Highveld Mall. We paid the full amount of R7415.84 on the 27th November 2020. Their initial position was that the parts should be available on 30th November or 1st December to complete the repairs of the phone. They are waiting for one part. On request to when the part is expected they give a "sometime this week or next week" kind of answer. This is unacceptable. At least they can find out from Samsung when the part will be available. They are making me to call the branch, the branch refers me to head office, head office tells me to call the branch. I need to know when the repairs will take place as this phone is used in business.