Shamper:
While I was playing a game last night, the notice came up with the option to purchase balls 'in-game'. I clicked to buy, and rec'd the message that the purchase didn't go through, and to go to the Pro Shop. After the game, I went to the Pro Shop and bought a sleeve, and lo' and behold I ended up with the sleeve I couldn't buy during the game, and the sleeve I bought from the Pro Shop. Glad I had enough credits......
Yeah, it does that a lot.
99% of the time, when it says purchase didn't go through, it will have done.