I am not 100% Rainbet can pay any amount. Multiples of 10 should be fine .
Are you saying that may be technically impossible?
I remember I won a 0.25 mBTC freebet and since the main unit in Rainbet is US Dollars, I received a $17 freebet. So, I think they are probably able to credit any amount of freebets.
You are actually right, we are working with several bookies and all the others have fixed chips for free bets but Rainbet never complained about it and yeah they are actually paying those promos as per current BTC rate every week.
Still looks better if I don't send a free bet request of 27.25

I would appreciate round numbers anyway.
Everyone that needs some side deals handled trough the sheet, start sending me those requests. As always request has to come from the person that is sending the money not the one receiving it. First version of the spreadsheet will go live today and we will also set new season buy ins today. Will be easier to do the math then.