Well, I just got a message on reports saying that my pet had leveled up, and I had recieved a 1000 silver prize. I got a few of those when I began, but I haven't had any since, until now. Why aren't the prizes given for every level up, and if they are, why haven't I recieved one? Also, I haven't got the 1000 mentioned, unless I am mistaken.

Level up only increases the stats of your pet, it doesn't give any prizes. The log entry that you posted is a report about completed quest. Silver, pet XP and bonus items are transferred to your account at the moment of completion, not when you read the report for the first time.

Oh, that makes sense (: That's a pity, I'm trying to save up for a level 2 stable, and a reward would help for leveling up XD