dim paymenttype as string
Console.WriteLine("please, enter the payment type")
paymenttype= console.ReadLine()
if paymenttype = "Visa" then
console.WriteLine("extra chargers for visa:10$")
elseif paymenttype = "k-net" then
console.Write("extra chargers for k-net: 5$")
elseif paymenttype = "payPal" then
console.Write("extra chargers for payPal: 15$")
console.WriteLine("the payment type you chose is invalid :{0}",paymenttype)