Disney can get picky with using numbers in a guild name. I know a star wars guild named "Da Force" LOL
And for this:
the "0" just means that was all they got, so aye, something had to go wrong there. Disney is also picky with Consecutive numbers..so you might have to talk to them in live chat or something
Some suggestions I have for new guild names would be:
Clone Wars
God Clones
The Guild Of Clones
Clone Masters
The Pirate Clones
The Clone Legion
If you dont think [B]Clone]/B] wouldnt be good for a guild name, then try these:
Matching Pairs
The Matching Pirates
Groups Of Matching
The Matching Mates
Thats all I got, if you want to give this a shot then you can, they might not-as Max pointed out before-Like the workd
Clone. But maybe these names can give you some good ideas