Still waiting for line installation after 2 months

At the end of October I went into a Telkom store to sign up for their uncapped data and ADSL option. I was told that a technician would come to install everything in 14 to 21 working days. A few days later I received an sms from Telkom with the reference number and installation date of 16 November. Things seemed so positive... and then... On 16 November, no technician arrived or phoned. I called various different Telkom call centres to find out what had happened. No one could tell me what the problem was. I even went back to the store where I signed up and they said they only deal with sales (not technical services) so they cannot help anymore. After a week of phoning different numbers, I eventually called a number and spoke to someone who said that the installation date had been moved to 16 December. I asked them if this was correct considering the 16th was a Saturday (and a public holiday) so I didn't think a technician would be coming out. They reassured me that someone would come. I asked if they could give me the technician's contact details but they said no one had been assigned to the job yet. No one showed up on the 16th December. I then received another sms stating that the installation date is 27 December. I phoned technical services on the morning of 27 December to check that the installation was going to take place. The technician assigned to the job was phoned and he was on leave so he said he should not have been assigned the job. I was then told that all installations in the area will only be done after 8 Jan 2018. But that the exact date cannot be confirmed.

I have now been waiting for 2 months and after being given 3 different installation dates, I am no where closer to having the line installed.

I'm not sure who to contact or how to resolve this. I have heard that the Telkom service is bad but I didn't realise it was going to be this painful.