Ajio — Refund not received

I have not received my refund of return id #RT49878945 yet. its been more than 3.5 months now. i tried mailing them more than 20 times giving all my bank statements and trying to reach out but no solution was given, the customer care executives are also of no use, they keep on postponing saying that youll get it soon or just hangs up the call on the face.
can anyone please help me ?