no signal

For the past few weeks in Wierda Park Centurion, the internet signal has been very bad, but over the last week we have only had intermittent signal and no signal in the evenings. I have lodged a complaint with the call center (reference number ***3) on the 8th March. On the morning of the 11th (07h38), I received a voice mail that said I must return the call, which I duly did. I once again got the call center and was told that the technicians would get back to me in 5 minutes. I waited 7 hours, whereupon I phoned the call center again to get help. I was told that they would resend the e-mail to the technicians and that they would get back to me by the next day.<br> My problem is that there is no signal and that I need the internet to do my work effectively. Is this a problem that can be fixed in a hurry or must I migrate to another service provider?