Telkom's Service is disgusting

This is now my third hello Peter Complaint and i still do not have my ADSL line installed. 4 months later!!!!After all the hassle and poor assistance, i was told previously that the consultant had captured the order wrong and had to re-do the order. Supervisor had advised she would ensure that this would be escalated and prioritized. The date of the 29.07.2015 would be the installation date. the date has come and gone and yet still nothing, i have just gotten off the phone with them and 20 mins later they have advised me that the address was wrong and they now need to re-do the entire order once again and can only set the installation date for the 27.08.2015, another entire month of waiting for them! this is absolutely ridiculous! you would think after the consultants have messed up on your order for the third time they would ensure it has priority and schedule for as soon as possible but no i now need to get in the line all over again. Telkom do not know a thing about customer service or simple instructions! Where are the managers in this company as they are never available!