In App Purchases don't seem to work.

[Guest phunni]

I've recently tried to purchase a couple of things "in app" and, in every case, the purchase goes through and then the app crashes. The result being that Google Play thinks I've bought it (and has charged me for it), but the app doesn't think I've got the item.

This has happened with a couple of different apps, so I don't think it's app specific - more likely a problem with Google Play.

One of the apps has a "restore in app purchases" option, but it's still unable to find my purchases.

I've emailed the developers in question,but have not yet received a reply. I will continue to contact them, but I wondered if anyone else was having this problem and if anyone knew of a way to prevent it from happening in the future?