Thank you for having shown these evidences.
Their statement was clearly inaccurate, fallacious and misleading and your report clearly deserved a bigger compensation than 5$ in bonus. It's a serious matter even if they didn't cheat you in the strict sense of the term.
Yeah, I mean... You can't imagine what I felt when the hash didn't match when performing the verification... I mean this is very serious for their reputation... If they can't maintain updated one of the most important sections of their site, can you imagine their security? anti-hack? their programming? wow, a lot to think. Think twice before depositing your crypto there.
I can feel you mate, I was once a 'victim', it's not a big money that I gamble and loss. I'm just disappointed when I verify everything because I thought I got cheated. Anyways, I move on already.
By the way, the fact They treated me like a kid or a beggar asking for pennies with that $5 bonus is disrespectful, I was gambling MUCH more than that... Crazy, BIG thumbs down for that fallacious, misleading and shady site.
It's about time you go and check other sites as well, as I have said simply move on try something new. Doesn't matter about the feel and experience, just learn from that experience. Best of luck.