There is also a way to pay at the Postal Service which is called an "International Money Order". It will be converted to pounds or Euros. Here in the States one goes to a large post office and purchases one. It may be sent to you by Air Mail which will take 7-10 days or Int'l Express which takes 1-2 days. To assist you in how much to charge the customer, put it in a box and have your postal service weigh, assess insurance charge, and postage. This is how much to charge and have her purchase the money order for. Don't ship until you have received payment.