Vijay Sales — The staff whines about you

Forget customer care, you can clearly hear the staff whine about you in the background when u call them back to get your television repaired which is within the warranty period.
P. S - its been like 10 days and no sign of technitian coming to my home.
They keep saying that we have mailed to the company but there are no results yet. They give false promises saying the technician is coming to your home in 1-2 hours.
Being a doctor myself, should i keep calling vijay sales the whole day or do my job?
Enough said.