Chalk it up as a bad experience, but there is no reason it shouldn’t be allowed. Because if there was rule against those extremes then there would be need to be a rule on the other end of the spectrum aswell. Where profit is.
For example you lost 250x to 1 game with no bonus. Someone else could land a bonus at 0x loss, or very minimal at least. Guaranteed profit.
My advise is set yourself a loss limit per game and play something else if its bad. 10 games at 25x loss is better than 1 game 250x loss.Or whatever you think is an acceptable loss amount