GetProductPrices -- Get a products price

[NixBill]

Required:
Hash
Product Id
Cycle Id

Sample Input:

<nixbill>
    <command>GetProductPrices</command> 
    <hash>Your hash here</hash>
    <productid>1</productid>
    <cycleid>3</cycleid>
</nixbill>

Sample Output:

<nixbill>
  <result>
    <hashok>1</hashok>
    <excutedcommand>GetProductPrices</excutedcommand>
    <product name="Level 1 Hosting" id="1" cycleid="3" price="1.00" setup="0.00"/>
  </result>
</nixbill>