I recently made a WU cash transfer, and got a confirmation email saying it was successful and that my account had been credited, however, when I opened up the client my wallet balance was still empty

It's been about two hours since the confirmation email and I still haven't got my deposit. Is it normal for the system to take awhile to update the accounts, or has something gone wrong?
I have played on Carbon before and deposited the same way and immediately after getting the confirmation email my wallet was updated so I'm kinda leaning towards something went wrong