McDonald's Drive-Thru Promotion
Free upsize french fries when purchases medium or larger french fries, or Extra Value Meal. For extra large french fries get free 1 small french fries. Search Drive-Thru https://www.mcdonalds.co.th/storeLocationsTerms & Conditions -Discounted price
-McDonald’s reserves the right to change without prior notice.
-The visuals are used for advertising purpose only.
-McDonald's Drive-Thru only. Except McDelivery service, McDonald's application & website.
-Prices and menu can be different from each branch.
-Can't be used with other sales promotion.