Error processing purchase for 3 days now

Hey iamchrisatkins, are you still getting this issue?

What's the device you're trying to make the purchase from? Is it Android or iOS?
Also, when does the error occur? Once you pick a the package you wish to buy and tap on it? At that point the app tries to communicate with the payment provider. For Android the provider is Google Wallet, and for Apple devices it's iTunes. When something like this happens it could mean that there's an issue with establishing a connection with the payment provider.

I'd advise you to relog your Google+ or iTunes account (depending on your platform) and try again.