Very cute app however after purchasing app is still locked – Pinkfong Fun Times Tables Review

This is a very cute app for kids to learn their times table. I went ahead and purchased despite the negative reviews of not being able to use the app . After payment I still only have access to free content when the entire times table 2-9 should be unlocked to me. It would be great if someone from PinkFong app support would reach out and help me. I’ve tried the restore button and delete/redownload but nothing worked.
Review by hello app reviewer on Pinkfong Fun Times Tables.