Lloyd — Brand New ACs are not working

I have purchased 4 ac from Lloyd for my new home. ACs were not properly installed and now they are not cooling.

The person who came to install the AC said that they are properly installed and will start cooling in sometime and then left.

Now I have been calling the customer care for a week now and they have registered the complaint but my issue is not being resolved.

They sent two people to fix the AC and they came and investigated the issue and left that they will need to forward them to their concerned team.

I need my ACs to work properly after I spent so much money on them