Hathway — Non installation after accepting payments

I made payment for registration on 05th feb and installation was done on 06th feb. The guy who came for installation promises it will start working the same day. However it didn't. The manager promised that will be done by 10am next morning, still no results.. These guyz have been giving new timeline with every call and after a point of time everyone stops picking the call. The problem isn't they aren't installing the main problem is you guyz aren't able to communicate a proper date, there is no respect for other persons time or commitments.. ... I am writing this on 07th feb 10 pm the manager has stopped answering or replying to text, I have opened 2 customer complaints but to no avail.. If the before sales services are so pathetic then I can imagine your after sales services.