In regards to urgency, I'm sure the team will get back to you as soon as they are able to. As you may be aware, there has been a hive of activity recently with PAX, and various development work. In addition it's quite a small team so becoming hard for them to respond as quickly as we might sometimes like. Be patient - they will get back to you.
In regards to effects to yourself, there will likely be none. The game has not launched yet, and I'm aware of no functionality that you'll be lacking in the interim.
This sounds like quite an unusual case. It may be that queries have to be raised with the payment provider, and transactions gone through at every step to find out what's happened. As soon as they are ready to respond I'm sure they will.