Lottee,
There is perhaps another line of enquiry you could take; on the MIC for Pte. Lawrence 22812, next to the the entry for the SWB, there is this reference:
List H/1129
This is a reference to the Silver War Badge roll, held at the National Archives, in which information relating to Pte. Lawrence's official reason for, and date of, discharge should be recorded. It will also state the official number of his particular Silver War Badge (each badge was uniquely numbered on the reverse).
The point I am making here is that if the info on the roll corresponds to what you know of 'your' Victor's injuries, then it will be fairly safe to assume that you have the correct MIC, and the right man.
If you are unable to visit Kew, in person (I believe these rolls are not available to view online, though I could be wrong) then it may be possible to perhaps request a look-up, via the forum.
Just a thought.
PJ