Q: print invoice from store

The emailed receipt for iTunes store purchases will have been sent to the primary email address on the account, you can't print out extra copies of receipts, all you can do is take screenshots of your purchase history.

If the account was a @mac.com email address then do you still have access to that email account, and if so is the emailed receipt in its inbox ?

From : iCloud: About your @icloud.com, @me.com, and @mac.com email addresses - Apple Support

• If you had a working @mac.com email address as of July 9, 2008, kept your MobileMe account active, and moved to iCloud before August 1, 2012, you can use @icloud.com, @me.com, and @mac.com email addresses with your iCloud account.

In each case, you can sign in to iCloud with either your @icloud.com email address or the Apple ID that you use with your iCloud account.

you can add a secondary email address on your account,

Also I found a workaround for myself on Apple.com / Account (http://www.apple.com/shop/account/home) > Change your default shipping or billing info >

Payment Information > Edit and change the email address.

Not sure why you're replying to me, but an alternate or rescue email address won't affect where iTunes emailed receipts are sent to

humm replied to the wrong person sorry, PS no recovery no, secondary would, but my workaround probably still work anyway.