Need help and can’t find settings – Baby Car Games Review

My son accidentally spent $2.99 to buy all the levels by clicking around, trying to get back to the game. I have looked for the settings to get a customer service email address and can’t find the setting anywhere so I’m hoping the right person sees this so we can get a refund. We are completely okay with losing the extra levels.
Review by J96R98C19 on Baby Car Games.