Urban Clap — Service for microwave

Address:

Gurgaon

My microwave wasn’t working and hence I got a technician booking done through urban clap app for repairing the microwave.the technician came and he is a verified one from urban clap company and he rectified my microwave and charged me 3800 and also changed some parts.
Later as soon as he left the microwave didn’t work again and I called him to get the issue sorted.He took the microwave along with him the second day and then ad lockdown started he could not deonef it back to me for months.After around one plus month he got the microwave back and it still wasn’t working and issue prevailed.He told me that he will keep the microwave at home and will come again in a day .After that neither he came and nor he paid me my money back.
Urban clap is saying that the warranty period of 90days expired and hence they cannot pay back my money wherein therd technician is fraud and he had just made fool o[censored]s for many months and due to covid he didn’t come even after multiple follow ups .
Pls help me get my money back from urban clap as they are just not supporting and ignoring my complaints