Still no internet

After 10 days and many many hours on the phone with Telkom I still don't have Internet. The service was working perfectly for 3 years but then suddenly stopped working on the 15th of August. Every day Telkom have a different theory. First they blamed the local exchange, then they blamed my login details, then they blamed the router, then they blamed the login details again, by day 8 they claimed that there was never a fault reported, then the technician finally came to site on the 22nd Aug and he claimed the line is fine but the login details were wrong, he went to test the login details on anther line and it worked fine.....had no resolution, then the latest (24th August #Thabo ) claimed that the login details are correct but the line is not authenticating and this will be resolved in an hour. Well ...18 hours later still no internet. Can't wait to hear what today's theory is.<br> <br> 2 routers ( 1 Brand new out the box), 2 different ISP logins are not working on my line.