Stars do not roll over...
You Do win the Credits for All the Stars on the Line. So you Haven't lost any Stars.
Once you have filled the 6 stars, you start again with a blank field of stars.
It is not a bug, it is how it is designed to work.
I lost 800 credits, I never got to win or recover anything ... I will have won 25 or 20 credits very rarely, rarely, no did I get to win or recover any credits ... I was just trying to recover. and I want to recover them .. half or something .. look for my movements, they will see that I don't lie ...
I want something back, since I don't have anything physical for my credits .. 200 credits or 400 return me. The least I ask ... I want to buy some cards. here it is very expensive, and I feel cheated ... I could never recover anything with the machine that is fixed ... or give me a mail for claim my credits back or anithing...