The above quality ratings are based on overall experience of each phone card, customer feedback, and reputation of card manufacturer. The above ratings are to be used only as a guide and are not to be thought of as a guarantee of service quality. BestPricedCards.Com has no control over domestic or international rate changes, quality of lines, disconnects or closing down of the long distance carrier or the phone card issuer, so no liability is assumed in any of the above events.