State Bank of India — pending of closing letter

sir,
my card no.[protected].On[protected] a collection boy has come to my office and collectef the ouststanding of Rs. 766.00 . he has been directed by the local collection office at cochin. they have given me collection slip on which they have written that the closing letter will be given on or before 13th july 2007. since then nobdy is picking my phone and no closing letter is issued to me. after that recently i ahve been getting call from telling that they are from legal serive department of sbi cards and they are thretening me. infact i have cleared all my outstandings in my card.
Please issue the closing letter . Now am receiving an online statement that my card is having an outstanding amount of rs. 5500.00.I have no idea about the amount and and they are illegally charbging me the interst and late payment fees. I am affarid of whether it comes to CIBIL . so kindly solve the issue.
with regards
sherjin augustine (M) [protected]