I failed the account verification step for setting up my 529 plan account. What do I do next? July 06, 2020 22:18 Updated Please contact us at firstname.lastname@example.org and we will help you! Related articles Where can I find my account number? How does CollegeBacker charge for its service? What fees will I pay? What is the difference between a 529 plan and CollegeBacker? How do I connect an existing 529 plan account? How much can be invested each year?