If you have posts deleted (apparently) unfairly, best option is to use "request review", rather then go back & forth with Admin about various posts.
In the past, I have carefully re-read my deleted posts, and can usually figure out where I went over the line. Then I re-post, changing the part that I think triggered the deletion.
Pretty much any opinion or thought about a company can be phrased in a way that fits within TOS.