yesterday i just launched an campaign in Jumptap and it got approved.
I bid 0.2 usd. for a few hours and only get about 2k impressions and 6 clicks.
How much do you usually bid? and the volume of click you got?
I bid min recommended which is mainly 0.1 and get more volume then i could deal with 
Are you bidding the recommended bid?
Jumptap is pretty fucked right now. Always start with bidding the lowest on mobile and focus on ctr. CTR is the name of the game in mobile.
Maybe it has little traffic of the country you target.