Slight OT: Vodafone UK problem

Hi,

In tests of some xHTML content in our custom xHTML browser we have, 
there are some issues when using Vodafone UK as a carrier. It seems like 
they have some content filter in place which bans content it deems 
ADULT. The funny thing is that our content is not adult at all, it does 
contain some foreign words which may be confusing it but none of the 
words are adult or offensive.

The filter can be lifted on a per user basis but this is not a good 
solution for us. We do not want to inform every user to call up Vodafone 
  Care and get the filter lifted.

I don't even see a way to contact the relevant people or department at 
Vodafone to understand the situation.

Anyone faced anything similar or have any ideas how to get around this 
or even have some technical contact details at Vodafone?

BTW, they seems to employ some sort of proxy too which strips out data 
from content, people are reporting that the proxy even reduces image 
quality/size. It's quite a weird situation.