I am sorry but for me it's a scam. Well, ok for the moment , let's call it a "bug" in your program or maybe me not understanding the way you attribute their value to the cards
for example :
When I bet the next card would be higher than a 4 and when i returned a nine it tells me that i loose...
this kind of "bug" happened three times to me..
it shouldnt happen pls can you tell me your username? we tested it on thousands of games and it worked in 100% cases so this is pretty weird