800-539-9380

this is the number left in a recording from CSG to get people to call them back. The number that calls with the recording is 716-257-1275. This was my interaction with them moments ago:

called and was the typical recording. Hit "0" to see if there was an option to block the caller and the actual guy in the recording answered. I told him we need to know who he was trying to reach since he called a business number, he refused to tell me who he was looking for unless I told him who I was, I said he's the one that called us and he needs to identify the person he's looking for or remove our number. He then proceeded to tell me I was violating some kind of BS law that I'm sure he made up because I wouldn't tell him who I am. NEVER GIVE SCAMMERS YOUR INFO OR YOUR NAME. I told him that if it was that important than he should know that he was calling a business and that he should have been prepared to be met with questions and that if I was violating some law, then he is too by not being forthright with his intentions. He got an attitude, I snapped back and he hung up on me