Yes, in the past I believe its been a real pain for some users. A good idea is to build up a small folder on your desktop/tablet/phone of all the documents you ‘might’ need with clear pictures. Then if any firm should ask you’ll already have it handy.
Once you know it’s accepted by one firm, its validated a solution for future ones (hopefully).
It’s unfortunate but some bookmakers have a bad reputation for this kind of stuff, a dirty tactic.