In App purchase implementation w. Server receipt verification

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
I have a great new app all ready to go, but am struggling with the in-app purchase part, particularly due to Apples best practice recommendations concerning receipt verification during the transaction process.

I need help with implementing this within the app, making sure that I deal with delays & errors in the process, and particularly with setting up receipt verification on my server. If we can add database collection of receipts to my server, that would be an added bonus.

The app and the in-app purchases (products) are also correctly set up in iTunes connect, and I am able to retrieve the product information with StoreKit codes - ie. the sandbox is up and running as it should.

I would like the work started within the next week, and I would like to work together with you on this - for example with a live video feed between us while we work through the code and testing together. The app is developed using Xcode, the server side should be php/Mysql.

It is important you have tried this before and have direct experience with server receipt verification for iOS.

Please indicate how many hours work you estimate it will take, and also your hourly fee for future maintenance, etc.

Skills required:
iPhone, Mobile Phone, PHP, Web Security
About the employer:
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