HSBC Credit Card — Illeterate and goondagiri employees

I am holding an HSBC Credit Card and was making regular payments sine last two years. But to some financial problems in the family I could not make payments regularly by which the amount had increased to an extent which was not at all posiible for me to pay. So the bank offered me for the seetlement amount for which I agreed to pay. I payed the partial amount & now only a small payment is pending which I will be making it at the earliest. Mr. Ibrahim & Ms. Rupali Patel from DSA of HSBC at Malad branch is calling me up and harrasing me, they are also using abusive & vulgar languages which I cannot mention. They are calling up on my office board line and constanly firing bad words to the REceptionist of our company. Ibrahim is also threathening me. Please help.