"We do not trust you!"

Translation: Nie ufamy wam!

[ginap06.59]

Dlaczego nie wolno:
My tobie nie wierzymy.

[Jellei]

Wrong verb, 'wierzyć' is 'to believe'.

[gbaldacci1309]

This is a new case for me. I have not seen the word "tobie" yet. What case is this? Is it the same case as "to believe" (wierzyc) ?