accreditation
the reference to 'couple of months' is what is required in the UK after you have done the training and before you get the accreditation. I think only the UK requires accreditation. There are several course providers and 3 days is not uncommon; some are 5. To be honest, the length of course you really need is more than most people would be prepared to pay for - which is why they expect a period of supervised practice in the UK
Have you tried Lund University. The were doing a CRM facilitators course spread over a number of weeks. Or if you can get to Salzburg I am running a 3 day course at the end of September!