ICICI Bank Credit Card — Wrong late payment charges

Address:

West Delhi, Delhi

Dear Sir/Madam,
This is to bring to your notice that I Shikhar Gupta holder of ICICI bank credit card no:[protected] is facing a problem of wrong charges on my credit card,therefore i request you to kindly look nito the matter and try to get it solved.
The matter is i issued a cheque to the bank abnd droped it in one of the drop boxes,but some how it did not reach the bank,on the basis of a call recieved from the bank,I issued another cheque and some executive from the bank came to pick it up but did not deposit the cheque on time due to which i was charged with late payment fees.
I have called up the ICICI Bank Credit card customer care so many times but have not got any good response including today,now my card is blocked and the recovering agengies are calling me and demanding for a amount of above 5000/-,do you think it's wise from their side to do so and harass me every now and then, i request you to please look nto the matter and try to get it resloved asap.
i hereby request you to kindly let me know the charges waiver and re-activate my credit card as well as you can check my old records and see i have always been a good client of the bank,so kidnly also clear my bad credit from the credit council of India.
Thanks.
Warm Regards,
Shikhar Gupta