Hongkong & Shanghai Banking Corporation [Hsbc] — transaction issue

Address:

Kolkata, West Bengal

Hi,
Last month i tried buying some itwm of worth amount 38000 from amazon using hsbc credit card and made it as emi but after an hour i cancelled the item so as per rule i got a message from amazon that the amount i had paid will be back to my hsbc account. Again i got confirmation that it has been added to my hsbc card. Then i purchased the same again from hsbc. So basically i had spent 38000 from credit card that too in emi of 2 years selected at time of payment. Now i got credit card statement for last month and here its showing 38000 fro three times which has made my bill amount of 127000 whihcincluded some of my purcase and then 38000 for 3 times. How come hsbc is charging thrice the amount i had invested once. I rechecked amazon and confirmed on one purches i have done other had been payed back to hsbc once i cancelled the product. I am in delimma. This is really giving me unwanted trouble and tension