Exchanging Non-Calor Gas bottles?

Beatonboys

Hi All, we've just bought our first ever caravan and the dealer has supplied us with a "full" gas bottle to get us going. Co-incidentally my Father-in-Law has
also now given me a full bottle of Butane - I've got gas coming out of my ears! However, when they run out, can I exchange them on site for (presumably) Calor branded ones? Do they take in any brand as Calor have a reciprical arrangement? 

Just wondering...?