You can throw away your idea of another book sharing a bet slip with a name to it. Absolutely impossible.
It is very simple: Betby noticed that all or most bets of the user were on value odds, hence they labelled him a value bettor with +EV bets. This is not forbidden according to XYes terms. And to still be able to confiscate the winnings XYes changed the wording from value to arb. And that is nasty.
thats the thing here
in my case, first they accused me of value betting.. but since not 1 casino in the world confiscates winnings for value betting, they changed the narrative to arb which is absolutely not true. not today they decided to turn back to the value betting accusation and winnings are still confiscated though.. this casino and its reps are not honest at all. how many lies and false accusations already in just 2 simple cases which would be solved in like 10 minutes without a hassle