If parts of your Subway sandwich were missing when it got to you, first call or visit the store where you made the order.
Show your receipt and any other information that is related to the items that are missing.
You can take your problem to Subway's Customer Care team through their official contact form at subway.com/contactus if the problem isn't fixed at the shop level.
When you send in your report, be sure to include your order number, the date and time you bought the item, and a clear description of what ingredients were missing.
You can make your case stronger by including proof, like pictures of the sandwich and the ticket. To get a quick answer, be clear and polite in what you say.
Requests for refunds are usually processed by Subway within 3–5 business days, and the money is credited back to the method of payment you used the first time.
If not, consider filing a complaint on Xolvie to seek a resolution.