can't really judge from screenshots but yeah it really looks like there is something wrong
wouldn't worry about it since the amount is relatively small to a casino like cloudbet , but bugs do happen from time to time so hopefully their rep will show up and check your case
in case you haven't created a support ticket yet it's better to do so and send them these screenshots as well , it will get fixed I'm sure but hope it won't take long
I doubt there is any way to prove this without support getting involved , but so far the screenshots are good enough and I doubt that any player can get any other proofs when playing the live casino games