Note 4 IMEI and MAC address invalid issue

I got my Note 4 today(Tmobile) and tried to enter my information on the phone website. It asks for IMEI and WIFI MAC address. After entering those, I get an error that IMEI and MAC address are invalid. Samsung support says the IMEI is valid. The MAC address is copied directly off the phone. Different browsers or machines make no difference. So i would like to know what kind of issue is this ?
