Zareen Nx — dress that looks rich on marketplace, but received something different of sub-standard quality

Address:

C/o. Zareen NX, G2, Nasir Nagar, Ved Road, Surat 395004

The seller is mr. Bhavesh kataria (Mobile # [protected]. As mentioned in the same, when i loadged the complaint & return-request, he assured me repeateadly, nut didn't turn up as of now. Now he's not picking up my ph. Calls. Pl. Guide how to sue such fraud suppliers, legally.