public void AbrogateContract(int terminalNumber)
{
if (_billing.Repository.Keys.Contains(terminalNumber))
{
IContract contract = _billing.Repository[terminalNumber].Contract;
contract.AbrogateDate = DateTime.Now;
_station.RemoveMapItem(terminalNumber);
}
else
{
Console.WriteLine("\nContract with this number does not exist.\n");
}
}
