Poor service from technical team

I have had an issue with my hi sence TV, the Technician has come out over 2 weeks ago and found the unit to be faulty. The teljoy agent has said that they will get the TV swapped as it cannot be repaired. i have been calling everyday for the past 2 weeks and today they tell me now they want to send another tech. The tv is not working and now i must be delayed even more. The serivce was terrible and i have to keep following up calling from cell and using my airtime for a faulty unit