For orders being shipped within Greece you can choose between two payment methods -- cash on delivery or credit card.  When you use credit card payment, you will have the opportunity to make payment with interest-free monthly installments (if your credit card allows it).

If you choose cash on delivery, you will need to pay either at the post office or the courier delivering the goods to your home before you can receive your package. If you choose to pay through credit card, you will be given the opportunity to select the number of interest-free monthly installments during the checkout process so long as your credit card supports monthly installments.

In either case, you are entitled to a refund if you decide to return the product. For cash-on delivery, refunds are sent by a postal order, while for orders paid through credit card your credit card will be credited immediately.   

For orders being shipped outside Greece, the only available method of shipment is via courier and the only acceptable method of payment is via credit card.