Make sure the zone and province name to check for match exactly

address_utils/address_utils.go

@@ -241,9 +241,11 @@ func CleanZone(countryToClean, zoneToClean *string) (newCountry, newZone *string
 
 		for provinceCode, province := range Provinces {
 			for _, name := range province.Names {
+				if zone == name {
 					zone = string_utils.ReplaceCaseInsensitive(zone, name, provinceCode)
 				}
 			}
+		}
 
 		newZone = &zone
 	}