Colosseum Ribbons

[Gagome]

When do Pokemon get a Ribbon in Colosseum?

I know that every purified shadow pokemon gets one Ribbon.
All Pokemon in the party get another Ribbon in Story Mode when I win all 100 battles at Mt.Battle in a row.
But my pokemons got no Ribbons when I won the 100 Battle Challenge of Mt.Batte in Battle Mode to get Ho-oh. But I did get Ho-oh.
I have not played the colosseum battles in Battle Mode. Do my pokemon get Ribbons there?

[Music Dragon]

I have played and won all Colosseums except Orre Colosseum, both single and double battles, and my Pokemon got no ribbons. No message, no sign of any ribbon at all.