Prepaid Phone Card Design

We need someone to make the design for our prepaid calling card/phone card. The design is or 3 kinds of designs. for Value $10, $30 and $50 But 80% of the design will be the same. Only 20% different. So basiclly its only 1 simple design template. This phonecard is for using from australia calling to overseas. and the idea for the design is 100% up to you. Please make us 2 kinds of mock up if you interested in this project. We attach Some example on how the other phonecards design looks like . Please make sure your design will be much better than the example i attach here. This is only for example. The design idea still 100% up to you.