Telkom poor customer service

I ordered a home internet package from Telkom on 15 February 2018 via their website and a sales representative contacted me almost immediately to confirm the order details. She advised that it would take 7 to 14 working days for a technician to contact me to arrange the installation. It was working day 7 and I thought I would give them a call to follow up as I hadn't received the email or sms with my order number. They advised the whole process and I opted to wait longer. I couldn't get through to their sales department to obtain my order number so I Facebook messaged them and the very next day I received my order number from them. I have been following up regularly patiently waiting for a technician to contact me for installation. Yesterday (27 February 2018) an operator phoned me to advise that my area only covers up to 4mbps and I ordered the 10mbps adsl line. I was furious as the sales representative and myself checked the coverage in the area and we were able to both confirm that it covers up to 10mbps. The operator was incredibly rude with me but nevertheless i opted to take the 4mbps adsl line as there was no other choice. I now have to wait another 7 to 14 working days for a technician to contact me for installation. AGAIN I didn't receive the order number. I would like to cancel my order but I am not able to get through to their sales department. I have been forced to Facebook message them again as I am not getting through to their call centre. I would definitely NOT recommend Telkom to anyone as their service is poor and they do not think the customer is important.