Very disappointed customer

I have taken out a Wi-Fi contract with Telkom and it had to have been the biggest mistake I ever made. The sales assistants are so friendly and assistive to get the sale but once you confirm your deal the customer service is terrible. I took out the lit box uncapped Wi-Fi deal for R499.00 in December the technicians only came to instal on the 6th of Feb but still Telkom billed me for Jan and Feb even tho I did not have the device in Jan and to date I still do not have my lit box. I was first told it's going to be couriered to me which was shortly cancelled without reason then I was told to either go to Maponya, Southgate or the Glen to get the lit box i visited all 3 stored and was given the worse of excuses with the Glen store being the top of the list on bad customer service the lady was so rude and unfriendly first we were told there is no stock, then we were told there is no keys to the safe and lastly we were told we need to pick up the box from the store we took out the contract at which was Lenz Trade Route Mall who does not have any of the devices on hand and assured us it will be couriered to us. Then if that was not enough the Wi-Fi modem stopped working and with Glen stores service being so terrible And after calling the call centre countless times no one assists we obviously got no where with that even though the technician that came out confirmed that the guys that came to instal the device did not do so properly the wiring was all put incorrectly ...I am paying for something I do not even have how disappointing