Codebreaker conundrum confounds crypto-cretins

Need some help?

Thank goodness you lot weren't working on the Enigma code at Bletchley Park - otherwise we'd still be trying to bridge the Rhine.

Frankly, we are disappointed by the initial response to our codebreaker competition.

Entries so far have offered no solution, suggesting furthermore that the whole thing is a load of gibberish.

Rest assured, the whole thing is perfectly legitimate. Think frequency, think analysis, think Spanish dictionary. ®