Poor customer service

I app**** online for the Telkom Summer of Wow promotion to get a new line and internet at a 20% discount for 3 months. I was given a reference number e14446, and told someone would come and install the line the following week. That never materialised. I then complained on HelloPeter, and was given a new reference number SM72447 by the Social Media team. After a week of emails, I gave up and phoned Telkom to order my new line. Everything was brilliant, and I asked if I would still get the 20% online discount for 3 months. I was told to wait till my account arrived and then raise a query on my account. I did this and was given a new reference number ***8. About 3 weeks have passed and I can't make any progress on my query, nor get the 20% discount for 3 months app**** to my account. It really is a poor showing on Telkom's part. I phoned a few times and spoken to different people but no one has gotten back to me. Please apply the discount and let me continue enjoying my Telkom line.