You can buy the oil from almost anyone you like
https://mobiloil.com/en/retailer-locator
And fill the form here
https://mobiloil.com/en/promotion…oil-filter
Walmart – Mobil 1
- $15 Amazon or Target e-gift card with the purchase of an oil change with Mobil 1™ synthetic motor oil and a Mobil 1™ Extended Performance Filter from a participating Mobil 1 Lube Express oil change facility. $15 Amazon or Target e-gift card is limited to purchases made at a participating Mobil 1 Lube Express oil change facility ;
- $10 Amazon or Target e-gift card with the purchase of an oil change with Mobil 1 synthetic motor oil from a Participating Location; or
- $7 Amazon or Target e-gift card with the purchase of an oil change with Mobil Super™ Synthetic, Mobil Super™ High Mileage, or Mobil Super™ motor oil from a Participating Location (each a "Qualifying Purchase"). Sales of ineligible motor oil products will not be credited.
Not a bad deal after ~$23 – $10 = $13. Since its Amazon/Target and eGift card, I think much better than your refund check.