Also, my other thought is..... when I submitted documentation for KYC verification, there is a person on the other end who receives it and manually reviews the information and says approved or declined. My documentation very clearly states my country and province.
Typically with CEx's, manual verification applies on special cases e.g. acc was flagged because such process takes time and global exchanges gets a ton of applications which essentially could hamper the exchange performance if all verifications are manual.
Normally, identity verifications are automated by a verification software -- you may have seen some cases where their kyc were approved in just a couple of minutes or seconds lol. TBH, I've never regarded these softwares as highly accurate... even human checks are also open for mistakes.