Let me add my 2 cents to this.
Myself and 2 friends heard about this casino at the same time, all through popups/ads. I was the first Guinea pig, hrm... 100 free spins for only a $20 deposit? It was worth a try, although my suspicion was it was an easy way for them to get $20 from me. After the 100 free spins, my total winnings were .70 cents. Yes you read that correctly, .70 cents for 100 spins. As soon as those free spins ended, I immediately got another popup that I will get 120 free spins if I deposit another $30. By this point I'm convinced it's a scam, so I do a check some online reviews, and see others complaining of sub 1 dollar wins on their 100 spin bonus.
However I still decided to deposit another $30, to more or less confirm my suspicion. The next 120 free spins earned me an impressive $2! So now I have my 52.75 to play with. I decided to go for a modest .40 cent/spin on a variety of games. Every game I played was very similar in return. Overwhelmingly terrible luck on every single game, with an average return of about 10-15 % per game (this was consistent with the hundreds of bonus spins prior). I was knowingly scammed, it's my fault, but places like this just don't sit right with me. I decide to post a review on trustpilot (the site where this casino brags about having a 4.5 star customer rating). There are many 1 * reviews saying exactly the same thing as I experienced. I leave a review, and was notified that my review was being hidden, because betty.ca reported it. A quick search and I find several other people are complaining about silencing their critical reviews of their website on trustpilot as well.
I told my 2 friends about my suspicions, but still asked if they didn't mind testing it themselves to see if they had similar results, and if they lost quickly, I'd refund them their $50. They had very similar results, one also claiming to win .70 cents on one of the 100 spins. 0 bonus games between the two, and quickly losing their $50 afterwards.
So Betty.ca is actively scamming people, and whenever the victim tries to make their voice heard, they are being silenced and having their reports deleted. This is next level scumbaggery. On top of that, there are several people who have posted, saying they were given a casino credit for leaving a positive 5* review for Betty.ca .
SUMMATION: Betty.ca has falsely inflated their trustpilot rating by paying people to post 5* reviews, while simultaneously having legitimate 1* reviews hidden or fully removed.