So, it complies with the stated requirement, yet they decline them. The reason given is obviously not the correct one. There is something else wrong. Even odder that it's the SAME set of people looking at the SAME set of documents, yet they can't make their minds up and give a consistent answer.
This situation is not fair on players, as they have no way of knowing where they stand. If this whole verification is done to "gut feeling" of whoever happens to be on duty at the time, rather than a set of defined criteria that ALL verification staff have to apply, then the system is not fit for purpose.
Maybe this explains those many cases where players get a run of "please send again" followed by the OK, even when they have simply been resending the exact same documents over and over again. It could be whoever is on duty at the time making their own personal decisions, and try often enough as you get the same person who gave them the OK the last time around for a different casino in the group. It also seems that where the SAME documents are passed over internally within the group to a new casino account, they get the OK, but where the player sends in the same documents themselves, they sometimes get denied. This is the same document, but two different routes. This means that the document itself is not being verified, but it's provenance. Trusted when it comes internally, not trusted when the player sends it in again.