protected Voucher(IDictionary <Match, int> matches, int tax, Bookmaker bookmaker, int cash)
{
CashIn = cash;
Matches = matches;
Id = Guid.NewGuid();
Tax = tax;
Bookmaker = bookmaker;
}
public static Voucher Create(IDictionary <Match, int> matches, int tax, Bookmaker SportsBetting, int cash) => new Voucher(matches, tax, SportsBetting, cash);