Please check out this page for how to post code on the forums: Using code tags properly
Unfortunately, whether you have to post a beta in a few days or not, will not necessarily mean you’ll get an answer faster 
Okay, so is there a rigidbody on the object moving around? Is there a collider on it? Is there a collider on the pickup item, and is that collider set to “IsTrigger” ?
Ah, kinda only half read your post… so it’s a 2D game!. You need to also change the method to OnColliderEnter2D(Collider2D other)
Let me know if anything there helped ya out
I have to ask, out of curiousity, how can needing a beta in a few days cost you lots of money? 