Syrotech Networks Private Limited - No Repair Provided

I have tried calling them for repair as my router has been reset but they have blocked my number and are not responding to my request. The worst customer care inhale received. They only have to do some simple work bit are too lazy to come for servicing. I have paid all my money in advance already.Im from Geyzong ,West Sikkim. Please resolve the issue and take actions against your lazy workers. **th March,****.