Housejoy.in — service man bad working

This house joy company is kind of fraud one because they are having untrained and inexperienced persons in their company. One service man have come to our house for microwave oven for repair work and they have taken the oven for a very small problem but they haven't return it for past 4 days and they finally planned to replace our oven good products to them and they have given us a old parts containing oven and this is not at all fair really this is extremely unfair thing for all the time. Kindly please take action. Against that company. Thank you