Vijay Sales — air conditioner - not working within 1 week of purchase

Address:

Thane, Maharashtra, 400607

We purchased a daikin inverter ac a week ago, and it stopped working. It used to work for 10-15 mins and then automatically used to get switched off. We registered a complaint and asked for someone to come and check it, replace it or repair it. They promised us that they will send the concerned technical person but they dint. Its been 5 days now and no one has come for repairing it. We are tired of calling them again and again.. They just keep promising that they will send someone but no one has come yet.
Is this the kind of after sales service we should expect from vijay sales?
Its the worst after sales service i have ever come across.