Through you, Madam Chair, the returning officer has to be able to ascertain, as the member indicated, that this is a signature from an elector residing in the electoral district. The elector does not have to be registered, but they have to reside in the electoral district.
The returning officers are not equipped to look up addresses in different alphabets or languages. That is just the reality. Of course, there may be the occasional returning officer who would be able to do that, but I cannot guarantee that service offering.