public void DeleteCampaign(Campain campain)
 {
     Console.WriteLine("Campaign has been deleted");
 }
 public void NewCampaign(Campain campain)
 {
     Console.WriteLine("For this product: " + campain.CampaignName + " The Campaign has been added");
 }
 public void UpdateCampaign(Campain campain, Product product)
 {
     Console.WriteLine("For this product: " + campain.CampaignName + " The campaign has been updated ");
 }
 public void SellCampaign(Customer customer, Campain campaign, Product product)
 {
     Console.WriteLine("Due to " + campaign.CampaignName + " campaign the product " + product.GameName + " was sold to the buyer "
                       + customer.FirstName + " at this price $" + campaign.CampaignPrice);
 }