I have a very strange feeling that this guy is extremely new to gambling.
New gamblers are always chasing those losses & thinking no matter how much in the red they are, that at some point they 'have' to become positive.
1 bonus video shows nothing, and certainly the wins that bitcasino posted here (and you never denying you received), shows that you just may be exaggerating your self-calculated RTP.
Hell, I have a folder full of 3x-25x bonus videos. It doesn't mean anything.
You really have a gambling problem (don't we all) and should self-exclude. Gambling is about the entertainment and clearly you don't even get that out of it.
Sorry man.
Now.... if we wanna all chime in and complain about the complete lack of deposit bonuses bitcasino has

I'm all for it
What is your point here? As I can see players always aim to profit, no matter how much profit as long as they can get much of it then it wont stop. What you are saying here is really absurd and hard to understand, so please trying to make this more clear. And btw not all people are doing this for fun, some of them using some of their bankroll to make some profit here as well