Solved

Training boost

The pit training boost pack is displaying £39.99, it's actually £4.99 as intended, but your loosing revenue because no one is clicking it because of the display bug.

Hello,

This is a known visual issue - clearing cache does return all IAP prices to the normal amounts.

You can check whether you are experiencing the issue by checking the prices of the token packs - the prices should be in increasing order, however, if you are experiencing the issue, they are not in the correct order.