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 Tracking Tax Deductible Expenses Is SupportPay affiliated with any State Child Support Agency or Department? Comments 0 comments Please sign in to leave a comment.