What is the difference between SupportPay Free and Premium? SupportPay Customer Care January 06, 2019 19:04 Follow Below is the features of SupportPay Free versus Premium Have more questions? Submit a request Comments Related articles I thought SupportPay was free? Why am I being asked for a credit card? Does the other parent have to register in order for me to use SupportPay? How do I keep my personal information private from the other parent? Is SupportPay.com replacing my current goverment system? Is SupportPay affiliated with any State Child Support Agencies?