No delivery after confirming appointment (Twice)

I had Telkom LTE at my house that Telkom recommended to us and they said that we will have full signal and that my speed will be fast - After lots and lots of struggle with almost no signal and internet, I finally went to Telkom to cancel my contract and asked them to install ADSL - They phoned me and made an appointment for today 11/12/2015 (I had to take a days leave as they will come and install everything at my house) at 13.00 today I phoned telkom and said that nobody has yet to pitch up at my house - The lady at the call centre confirmed again that I am on the installation list and that they will definitely come out today - It is now 18.38 and nobody has arrived or even phoned to say that they cant make it - They wasted a day's leave for me - This is the worst service I have ever had - Telkom is ***** (twice in one day) - That is not customer service - I want a explanation and you will now need to install on a weekend (tomorrow) i cant keep wasting my leave for ***** like you