I don't really think it is a problem for text-based communication. You can just use a simple translator to get the gist of the problem/conversation. I think that should be enough to get you through the difficulty and they will probably like the fact that you tried.

Things may become a little more complicated if you run into this problem over the telephone.

Like kashirakaze said, always check it back before you post!

Most of the time people wont sign up to your services if you have an English website and they can't understand English.

It has never really bee a problem for us and only comes up about once a year. And we get by when it does happen.