Very few foods naturally have vitamin D. Fortified foods provide most of the vitamin D in American diets. 1  Fatty fish such as salmon, tuna, and mackerel are among the best sources.  Beef liver, cheese, and egg yolks provide small amounts.
Note: To contact a Seller requesting an invoice for an item Fulfilled by Amazon: 1  Go to Your Orders. 2  Click on the Seller's name, located below the item title. 3  Click on Contact Seller in More Information. 4  Fill out the information request form.
Seller Process. Visit the eBay website and log in to your account. Step 2. Enter the ID number of the buyer into the Find Contact Information tool on eBay or enter the item number from the transaction to contact the buyer. Step 3. Send the buyer a message about needing to cancel the order.