Indian Railway Catering & Tourism Corporation [IRCTC] — refund not yet received

Address:

D-1/S-1, New Alaknanda C.H.S, M.G.Complex, sec-14, Vashi, Navi Mumbai- 400703, Mumbai City, Maharashtra, 400703

I cancelled 4 tickets. Two were from bandra to samakhiali dated as on[protected]; and two were from gandhidham to bandra dated as on[protected]. I cancelled all of them on[protected]. However, i got the mail saying i should get the refund within 2-3 working days. But i still got no refund in my bank accounts. I paid the amount using a ru-pay debit card. It has been 10 days and the customer care number mentioned is always busy. Please help me get back my refund because this is third time when i cancelled the tickets and i did not get the refund back.