Make the sale but don't deliver the service!

Took out a new contract from telkom promising that the new Internet rooter will be 3 times faster than old one. Took very long to deliver goods and only delivered half the goods no letter included to explain usage . Internet was not working from beginning no assistance provided if I did not phone no help and when I got through after 3 days of holding on for 40min plus I was told cant help technical department will have to sort it out. Got sms that I will receive assistance within 2 days never happened. Carried on like this since January have laid complaints phoned logged faults Internet more off than on and definitely not faster. All my work is behind because of this and I've spent days on phone with tekom trying to sort it out. Time that I don't have. Sad that companies have absolutely no pride when it comes to delivering a service seems to be all about getting the sales...