Will not let me play new levels after paying

I got this app for my son. It lets you play the first level, then asks you to pay $6.99 for the next several levels. I did this, however it does not allow him to play any other level other than the first bedtime level. It says "lets go to dreamland now" but will not let you. I emailed the company but no reply. I am not happy paying $6.99 for nothing!

Rtmtricia about Goodnight Caillou