I haven't heard about this mining club [or pool...?] before, but since this is the internet and certain information can be gleaned at the push of a few keystrokes, I went ahead and did some digging.
Be careful: it doesn't look like you're in good company. Bitclub Advantage from all indications is a hot scam. Look what these folks had to say about them:
These reports are by no means conclusive and you might need further probing to lead you to an answer, but from a cursory glance: run and run very far. Bitclub Advantage's main business is selling hocus-pocus trading signals that are yet to make anyone a millionaire.
It is still possible to make acquire Bitcoin via mining. When a solo miner in a pool contributes computational power towards the discovery of a block, they're rewarded according to the proportion of their contribution. It would take most computers and hardware years to independently generate a block because they come in groups of 25 Bitcoins, so it makes more sense to belong to a pool and earn some rewards that would have been out of your horizons had you operated as a solo miner.
In essence, it is possible to make money/acquire bitcoins as part of a mining pool, but I will be remiss if Bitclub Advantaged have ever mined a single block since their inception.