WORSE SERVICE EVER

I was migrated to VOX & they promised to come change modem in the house and to date they haven’t. My network hasn’t been working since Wednesday 23rd and I called I was promised a technician will come and I have been calling each day to follow up. They gave me reference no VOX***3 And each time I call I am told the call agent don’t have a view or access to scheduled technician. So I don’t understand how are they managing or ensuring efficiency in such. I was forced migrated to VOX from SADV and I have had the worst service since. They send me email in September that a technician will come to my place for somethng and I was given time. Till today, that technician never pitched.