Howdy,
Getting into mobile marketing bit by bit, expanded to Buzzcity the other day for the intl traffic.
1. How do people contact their AMs - if there are any [for blocking low quality publishers], and how does one get in contact with them? I've used their contact form a couple of times - with no response in 5 days now, and conveniently their US office had no phone contact details.
2. What's a flashing "Blocked" mean? I'd ask my AM - but they seem to be hiding in their hobbit holes. I set a few campaigns - and a couple went from pending approval to blocked.
Thanks for the help 
each account is categorized according to what your first few campaign's niches are.
if your 1st campaign was a dating ad, they classify you as a dating account and you can't run any other type of campaigns on it, hence the term "blocked" showing up.
you need to create a new account, just use the same email. then add it to your master account so it's easier to switch between accounts.
thisoldhat ey? I remember you, in a negative way.
Ah, thanks, that sums it up.
Do you now? The only negative impact I made was years ago at blackhatworld - and that place is scrub city.
Also had the very same question, thanks a lot shanktank!
you can ask to change the category of existing account instead of opening a new one
As I remember, I sent them some questions through Contact Us.
Yesterday, I suddenly received the following email 
Hi Dani,
I hope you are well.
Please let me take this opportunity to introduce myself. My name is Dan and i will be your point of contact moving forward for any queries or questions you may have about advertising with us here at Buzzcity.
If i can be of any assistance to you please do not hesitate to shout.
...
Why would that be crazy?
You also have the option to transfer funds. Check the tiny link at the bottom of the add funds page.