Buzzmeeh.com - Phone repaired with fake screen

My phone's screen broke a month ago and I had gotten it repaired by buzzmeeh.com for Rs. ****. They had promised original screen but instead replaced it with fake screen. I realised this when I started facing issues * days after repair. I contacted them to file a complaint but the team was very unresponsive. * weeks later, they collected my phone to check the issue and promised to return it within * days. But it has been ** days, and every-time I call them for update, either they won't pick up / switch off their phones / promise to deliver it and then never call again. It was the only phone I had and the problem that I am facing is severe. I request your help on this matter.