[Resolved]  Abn Amro — Double billing for online shopping

On June 16, 2008 I purchased an e-ticket from IRCTC.co.in for Rs. 1270. I chose to pay through ABN Amro's net banking facility.
While going through the transaction, after entering my transaction password and clicking on the Submit button, nothing happened. So I clicked again, after which the transaction went through successfully, I was directed back to the IRCTC website and the e-ticket was issued successfully. However, when I later checked my bank statement, I saw that I was billed twice. When I complained to ABN Amro Bank, I was told that I should contact IRCTC. When I contacted IRCTC, they said that they had billed me for one ticket which was issued successfully. I again contacted ABN Amro bank, and they promised to call me back but I never heard from them. Despite repeated calls, there is no revert from them.
Personally, I know that the issue is at ABN Amro Bank's end as their website is faulty and that must have caused the double billing issue.
Now I dont know what to do, where to go and who to speak to. All I know is that one of ABN Amro Bank or IRCTC has cheated me of Rs. 1270.

Regards,
Siddharth