What is the difference between SupportPay Free and Premium? SupportPay Customer Care January 06, 2019 19:04 Updated Follow Below is the features of SupportPay Free versus Premium 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? Welcome to SupportPay Help Center Does SupportPay replace government / state child support systems? Tracking Tax Deductible Expenses Comments 0 comments Please sign in to leave a comment.