ICICI Bank — Not giving time for repayment or doing settlement

Due to loss of job I was unable to pay my credit card bill dues for 2 months. I am requesting bank persons to give another 2 months time clear the due as I am arranging funds to pay the bill.
They are not listening at all, day and night they are messaging and calling giving mental pressure and threatening that they will come and sit at home till i clear my bills and give pressure to my family they are telling.
Due to this pressure I am stressed out. I have sent mail and messages requesting them but they are very arrogant and not helping me.
Iam clearly mentioning i will clear the Payment within two Months, but he is not aware how to behave and Speak with the Woman, how can they tell they will send field executive to my house and sit there till i clear the due.