private bool HasCard(BasePlayer player)
private bool HasCard(ulong member)

private int Balance(BasePlayer player)
private int Balance(ulong member)

private bool Deposit(BasePlayer player, int amount)
private bool Deposit(string member, int amount)
private bool Deposit(ulong member, int amount)

private bool Withdraw(BasePlayer player, int amount)
private bool Withdraw(string member, int amount)
private bool Withdraw(ulong member, int amount)

private bool Transfer(BasePlayer member, BasePlayer target, int amount)
private bool Transfer(string member, string target, int amount)
private bool Transfer(ulong member, ulong target, int amount)