iphoneimei.net DataCorp LTD states that they do iPhone unlocking

I purchase service to unlock my iPhone 6s Plus with these folks, they came back stating that the IMEI code I gave them was locked or I had not paid off the phone with my current cariier unless I paid them additional monies. I contacted my current carrier (AT&T) and I was told their was nothing noted about my iphone with them about, nor was there any thing locked (I paid cash for the phone when I bought it directly from Apple) and it was free of any emcumberances. AT&T unlocked the phone with in 24 hours. Iphoneimei.net basically has a no refund policy that is not noted in their terms of service unless you don't pay the up services charges. These folks are scam artists and a major rip off..