His first name might be Jésus. That would explain the diacritic character.
My interpretation is that the complainant's name is exactly one letter, and it is an accented one, e.g. Õ.
Or Ě.
Or Ů.
sorry, i phrased it poorly. my name has more than one letter, but includes one accented letter.
That was my interpretation as well. I was making a joke that the OP said his name had one letter, then indicated that his name was "jesus christ". (All lower-case, too!)