Consistent corrupted character list

So i created a campsite with the same name as another already created one AND all hell went loose on my character list! First half my campsite vanished out of thin air, than some of my characters became doubled/tripled on the list like 1 on position 7 and one on position 13 (randomly). Any possible fix? Please help i’m not happy at all -_-

it is affecting the whole wow account. I do have 4 trials Extensions with 1 char and just checked all of them. I do have duplicated Warband groups i haven’t created myself.

https://ibb.co/W4BpL5fr

https://ibb.co/NgzSf3Bd
https://ibb.co/v49LJNGB
https://ibb.co/d4pHjCLd
https://ibb.co/NgZXGDxM
https://ibb.co/vCz0d9zW
https://ibb.co/4RsrXxTr
https://ibb.co/gFwVhcNv

Tried deleting WTF / Cache and Interface (after a backup ofc) so a clean rebuild on those - 0 success

Completely reinstalled the game yesterday as well - still i got the cloud char list as bugged as before.

Sadly my 3rd ticket get some AI replies repeatedly (yes i than read it is not the way to go - but it used to be long years ago). So my last hope is this forums since i do not have any other connection with actual Blizzard people. I can play all my characters, the glitched character list seems to be Visual only but it is bothering me because i cannot move my characters or add them to warband groups after that happened. Simply 2 warband groups with the same name unleashed this corruption uppon my account and my entries in the cloud are now Permanent. Never in my 20 years of playing the game i have gotten such an issue.

it is affecting the whole wow account. I do have 4 trials Extensions with 1 char and just checked all of them. I do have duplicated Warband groups i haven’t created myself. Both US and EU.

https://ibb.co/W4BpL5fr