Poor Vodacom signal

I have been a Vodacom client for nearly 15yrs. Since day one I have had signal problems. A booster was installed and the signal was fine. However every few years the signal worsened again, a new booster was installed and the signal was fine again. I have had signal problems for a few months now and have reported it several times. Everytime I was promised a technician would be send within 48hrs but nothing happened. I have to work from home because of the lockdown and the poor signal makes it nearly impossible. Is there anybody from Vodacom that can help, please?