trans. looked like 4b2u7275 not sure on the u
Well, based on your post title;
"vin bs23l4b207275 " the u is likely a 0 & your trans is a match.
I have no clue what the 9a4880 could be, are you looking in the right spot?
Try & get clear close up photos of both VIN pads if you can just to be sure.