I get these calls three times a day every day. The caller ID says CTI, not to be confused with CITI. I have an account with Citi and I have had to make some payment arrangements with them. I talked to someone from this number before and he told me that there was nothing they could do for me and that I should file bankruptcy or contact a credit counselor. I told him that I had nothing to say to him and I had already taken care of my account. I requested that they stop calling, which they did, for a while. I pretty much ignore the calls now because I have already taken care of making my payments. However, if you have an account with Citi cards, Office Depot, or Shell, they are also run by Citi. Just FYI. If you have to make arrangements or if you are past due on any of your accounts, contact the company directly. They are more than willing to work with you. They would rather make some arrangements with you than to have you not pay your debt at all.