I’ve sometimes had problems mostly with tapjoy not delivering diamonds, but i’ve sent ticket and they always responded to me (only one time it was negative). Send support ticket with screenshots of you completing offers to tapjoy. With fyber i only had one issue and they handled it poorly but try sending them ticket also. I don’t have theorem offer so i can’t say but sending ticket to them if they have that options is best way to go. Automatic response from tapjoy is pretty quickly, few minutes, actual response with resolutions takes 2-8 hours depends on the offer.
All that stuff is going trough them not trough Perblue so they usually don’t respond to this kind of so Perblue usually don’t respond here, but if the problem presist and is not resolved by Tapjoy, Fyber or Theorem try sending ticket to Perblue. Also welcome to the forums @Decaye
Edit: I didn’t do any tasks in few days, that was just general problems that i’ve had