Welcome to the IBA!
What you have above should be gold. You have an impartial entity verifying your DBA. I checked the Exxon/Mobil website and I didn't see anywhere you could enter the station number to find out where it was. That receipt has no other markings that a certifier could tie it to. Even a phone number could have worked to link it to a location. These are the little SNAFU's that slow the certification process. We assume that ours is the only ride application they receive with a small hic-cup in it. Wrong. However your alternate "Proof" is a no brainer for the certifier. Good job!
There are many ways to document your rides. Some thing you can do later, others sooner, others depending on the situation. I take a photo of my receipt next to my odometer to include the trip meter, eliminating the need to write it on the receipt. I also do the same with the GPS without the receipt and then reset both trip meters. However, if the sun is shining brightly, the led odometer might not be bright enough to be easily readable so I have a pen tethered and secured with Velcro to my left handlebar (I'm right handed) to write the odo reading just in case. The pen also has a stylist on one end for when the "touchscreen" gloves decide they are not going to be "touchscreen" anymore. I used to fight with the wind and rain getting these photos but I found that placing the receipt in/at the bottom of a clear zip-lock type bag where it can read (On top of the previous ones), and then folding the bag behind it will keep it stiff so you can take the photos in these conditions as well as keeping them safe and in one location.
I've have what happened to you, happen to me. It was just passed midnight and also my starting DBA with the store number and name. I was doing a loop and would be returning to that same station but during the day where I could get another DBA that would tie the two receipts to the same location. Not ideal but it should work. Upon returning I found out that none of the receipts produced by that store have any of the required information. I went to the next closest station and got another DBA that did have all the required information. This is where the photo of the receipt with the odometer becomes invaluable. I included additional sources with my application and all went well.
You didn't say if you did or didn't use a spot tracker. If not may I suggest using
Spotwalla. It is an impartial witness to your ride and the certifiers can download the track of the ride and verify it much quicker.
