Citibank — Forgotten ipin no

Address:

4000092

I have forgotten my ipin no and shifted to canada. Changed my mobile no. So not able to get new ipin no. Submitted letter through courier stating all information and requesting to give new ipin no. But they reply back to submit the same information again. Couriered same information twice. Contacted by phone but no help. It is so disgusting on the part of citibank to handle their customers in such a bad manner. No good to have an account with citibank. Citibank tells online customer care service. But they don't help at all.