If you want your tokens back you'll need to contact Customer Service thru the in-game Support. They're the only ones who can do that, no-one on the forums can.
I would recommend logging out, logging back in and verify that the tokens are actually gone first. If the shop wouldn't refresh then it's likely the connection got out of sync. If so, the server should have not accepted the token spend, tho your phone may have looked as tho it did.
If you do need to contact CS, be polite but persistent. Good luck.