Quikr — Refund of overvalued amount

Some VR Subramanyan called me under the fake name Shubhojit Patra and asked me to fill an application form worth Rs. 49 for job. After filling the form and bank details, they debited 4900 from my account instead of 49 with no message and email of the same. Its been 4 days since the incident took place and till now my money hasn't been refunded. I'm a student and 4900 Rs. means alot to me. I need my refund or else I'll file the complaint against the concerned person as well as quikr in the local cyber branch.