I'm happy for you - its amazing to hear someone has lasted a year with CZZ and somehow has a 1-bedroom apartment that is reasonable to live in. I don't doubt the school and the students are great. Those schools are independent of CZZ (who sort of licences you out to them) and yes there are some good schools, training centers (Dashan for example) in Zhengzhou.

I don't know that helping you shop on Taoboa or writing 2 invitation letters is some kind of wonderful rewards - I'd think thats the least they could do,
however,

I'm just surprised you haven't been gamed, disrespected, blamed and caught on to all kinds of dodgy goings-on, schemes, highly incompetent organization, used and treated with disrespect.

They do seem to carry a handful of favourites. Did they tell you how 'some of those other ones' are drinking all the time and complainers etc?