I had the same issue with Facebook. I could not write by birth first name (in a language other than English). It was considered "offensive" by the filters in th

I had the same issue with Facebook. I could not write by birth first name (in a language other than English). It was considered "offensive" by the filters in that specific language. I ended up including some non-printable unicode characters in my first name, and after a few tries, it worked :). At least my name is now shown properly, even though the bits are not correct.