My midwife team requested my surgical report too. If you had some strange type of incision on your uterus and not the low transverse, that makes VBAC a bit more risky. They may also be looking for the method of suturing since sometimes they do one layer of stitching and sometimes two (two is better). Things like that I assume. It would be good for you to look at the records yourself too so you know and can research anything that they bring up, or you can be assured that there's not much to worry about at all. I'd look into it myself too, just so you are as informed as you can be. Good luck!!