OP, I can't help but wondering about one thing: how will the change of odds affect your betting history? Granted, you'll be at a disadvantage with the situation where the old [and lower] odds being applied to you instead of the newer and higher odds, as you'll earn more if you have a winning bet. But your placed bet is a losing bet, and thus would 1.5 or 2.15 still matter and affect your decision regarding the bet? Will you cancel your bet on Fritz's winning because the odds changed?
Yes it affects. One point later I could be interested of selling my bet for $780, not by ~$300 or even counter betting.
Odds are important, and the timming is important aswell, otherwise why would we want better odds than 1.01?
They stated they didn't place my bet on the odd 2.15 because of a definition in odd options... it makes no sense. I proved they changed the odd before accepting my bet so it is a trick basically they are selling 80 apples by the price of 100, to see if the customer is not paying attention.
Which will make you... lose more? Because you placed more fund on a losing bet. How is this not a good thing that they didn't cancel your bet? I mean, I am not taking their side by saying what they did is nice, I am trying to understand your logic and POV. As for the counter-bet, is it realistically what would happen? You placed a bet, got the odd changed to a greater multiplier and your bet cancelled, will you bet on the opposite side? Especially coming from someone who would want a better odds than 1.01?
I have to admit, the whole story doesn't look nice and the support clearly gave a wrong information.
When you click on "don't accept odds changes" then any odds change should stop accepting a live bet, that's how it is handed on any site I know.
On the other hand though, OP is kind of weird. Posting the same story with multiple accounts and with his 2nd account he also made a scam accusation against rollbit that they didn't enforce self exclusion on him because of his "gambling addictions.
I summarized this here:
https://bitcointalk.org/index.php?topic=5088875.msg63707686#msg63707686
https://bitcointalk.org/index.php?topic=5394559.msg63707696#msg63707696
So I am not sure if helping this guy isn't a waste of your time @holydarkness.