2) Why are they still allowed to advertise on this forum?
Bitcointalk does not moderate scams or services that advertise here, users would have to do their own research and decide if they want to use a particular platform or not.
I initially used them when that was much closer to true than it is now. In the months between my first few deposits and withdrawals they changed the TOS to require you "play through" your funds multiple times before any withdrawal.
I have checked their terms and conditions, and this is what i found:
All deposits must be wagered one time (1x) before you can withdraw any deposited funds.
Can you point me to where you found the information you posted? Not defending Betpanda here or anything, just that we need more information from you to understand the situation, since you have not posted an outright scam accusation.