I submitted a 3m item to Chase he pooped then i got the acheive for completing 75 levels then he is still asking for the same 3m item and I also got no prize :/

Have you made a ticket about this? I think a UA can at least get you your prize :)

I just rebought the item :/

but yes I made a ticket they have yet to inform me if they will compensate me or not.

Do you remember anything about what the error said?

a huge code box just popped up and said sql error with a bunch of random coding.