Vodacom Signals/Support is up to nuggets

Vodacom network, sometimes you only get notification of the missed Call. Then the phone was right next to you not making any kind of a noise. Vodacom Technical support will inform you that it is your IOS 13 Os which cause the problem... chasing you around, to send your phone to their repairs department. I went to iStore myself spare them the effort of trying to do something about the missing signals. Log a call via the store and the answer is after 4 weeks they will put up more towers in my are so I will have a better signal. On my own discretion I did a simswop, which only solved the problem for about a month. all starts over again. Another Vodacom user in my house recently complaining about the exact same issue. GUESS WHAT. He is using a Samsung S9 wonder if it is the operating system as well???