Who told you you'd get contribution?
The pack specifically states that the players get coin and the group gets funds, nowhere does it mention that it gives you contribution.
While contribution have mostly, if not always, tied with funds elsewhere, it's never stated to be a rule, so there could be cases where it's not.

Well, it's working for my group
fund went from *3651 to *3679 when I claimed and pop up says gained 28 fund.
And just to be sure, YOU gets only coins.

And you SHOULD only get coins.
Funds only affect the group, not you.