Faulty booster installed, 5 weeks later still not replaced/fixed.

On the 14th of January 2020 Vodacom sent someone to our office to install a booster since we are struggling with signal. The guy came here, unfortunately it was loadshedding at the time so he could not test. So he installed to booster and left. When the power returned the device was not working. I contacted him and he said he will be back the following Monday (20 January) to sort it out. Today is the 21st of Feb, he never showed up, he ignores my calls and messages etc. Service in SA is pathetic these days, and it seems Vodacom has fallen to it as well.