foghornleghorn
Field Bee
When I used Buckfast bees from Br Adam/Peter Donnovan, I never got a pedigree, so, I don't think that is necessarily a problem (unless you intend to breed from them).
Things have moved on a lot from Br Adams day though.
In terms of credibility, I would say: "recognised by who?" If there is a governing body, the group should confirm the breeder as a member, and, the breeder should follow the guidelines of the group. If either of these doesn't apply, they are probably not kosher.
There does seem to be an awful lot of smoke and mirrors around buckfast breeding. Don't see why they can't have the openness with links to performance records like the carnicas have