If there's a video shortage, i use appdog which is a long winded but trustworthy method of acquiring fb credits to transfer into tokens.

You download an app via appdog, install and open it (sometimes play to a certain level) and recieve x amount of bones that transfer into fb credits (sometimes immediately, sometimes within 15 mins)

Haven't had a shortage in a while, but have about 20fb credits on standby ready to convert just incase.