VODACOM SIGNAL BOOSTER

I logged a call towards the end of Aug 2019 already and my signal problem has still not been sorted. I get told of we tried to contact you (I missed their call once and have since phoned in) I spoke to a guy on Monday 9th December 2019 and I was told there is no stock of the signal booster, how pathetic is that, this is telling me that Vodacom has a serious signal problem. I have had my contract with Vodacom for almost 20 years now !! I was going to take up another 2 contracts but now I will rather move my contracts and give someone else business. I am currently phoning Vodacom, 16 min past and no one answers..............