Poor signal Vodacom

I have complained before to Vodacom about the signal at Umgeni park and nothing has been done. They phone me to tell me they are aware of the problem but nothing gets done. I can not make phone calls in my office and have to go to the park lot to make phone calls. It is not just me but other people with Vodacom too. I got screen shots with proof of no signal for my internet banking too. No connection. I am trying to run a business and with poor connection it is extremely difficult. If I do get through I can’t hear them too. Vodacom needs to do something about this.