Okay, so I bought the starter pack which gets you one month deluxe which I didn't get at first, so I bought a normal one month deluxe instead. Later, I finally got my starter pack deluxe but it still shows as one month when it should be two. Is there any way I can get a refund on my tank coins?
You can't build deluxe in individual purchases, unfortunately. It will only replenish the deluxe, putting it back to one month. And you can't get a refund on tank coins. Sorry about that.
You should have signed out of the game and then back in again. The starter pack is weird in the way that it's not a normal instant-purchase. I have no idea why.