I get the same call 4-10 times a day. They will not give me any info till I give last 4 of SS#. I will not give them this info. I ask for documentation on there claim. They tell me I already have it. They have my address as were I lived 8 years ago. They also use 888-201-6452. The say they are Global Service Group LLC. When I ask for there address they hang up on me. I have contacted my Attorney General