If your country doesn't have the concept of separate city/country, (Singapore doesn't) - you can just enter "Singapore, Singapore, Singapore" Or UK, London, Lo

If your country doesn't have the concept of separate city/country, (Singapore doesn't) - you can just enter "Singapore, Singapore, Singapore" Or UK, London, London. Totally agree that systems should not presume to known (often incorrectly) the format/content of such fields, outside of areas where they can. (I.E. Validating Postal Codes in regions like Canada, United States, etc..)