Hi. I've started playing yesterday. Previously played on kongregate, but there are more people here so i registrated here too. There are certain level ups when i miss the free tokens, credits and even legendaries. There is a windows that says Level up rewards: 0 credits/tokens etc.

I also had this happen when i died in a mission and leveled up, I lost my legendary for level 20 and all my credits and T.

I lost 21 tokens for no reason I did not even spend it on anything

If this happens, the most likely cause is that the rewards were added just before you levelled up, resulting in the reward panel showing no rewards (since it added them just before), but you (should) still get your rewards (email the developers if this is not the case). It's a known bug, you're not the only ones to have it, it's happened to me before.

Hope this helps.