For at least 6 months a company calling themeselves Portfolio Recovery have called me at least XXXX times from various telephone numbers ( recently on XXXX/XXXX/2015 from XXXX ) at my telephone number using robocall. They leave a telephone # to for me to call. I have called this telephone # and instead of they telling me the name of who they are looking to collect from, they insist that I give them my name. I told them that for privacy reasons I do not give my name to any caller that calls me and do not give the name of who they are calling. I have told them several times not to call me back as I have I do not owe anybody. I have even run a credit report on me and on my wife and there is nobody trying to collect from us nor are there any overdue accounts. They have no right to demand that I give them my name. They should only ask for who they are looking to collect from, at which time I would tell them whether I am that person or not. I consider this harrassment and an attempt by them to invade my privacy. They must be harassing a lot of innocent people, most of which do not know how to complain. The company can use my telephone # to match me against their records ; but I will not give them my name. I am also in the National Do Not Call registry.