What company did you use? Are they accredited? I know its easy for me to say now but did you check them out before you booked? Or you coulld speak to your insurance company & see what they say about accepting the company.
Some salons do training now which is accepted by your insurance, but wouldn't count as an actual qualification in the subject. You can still offer the service, but a majority of salons will not give you a job unless its an NVQ, Betc or otherwise. These qualifications, as long as your insurance accepts, are still ok to trade under. Just check with your insurance. My boss does these courses, that's the only reason I know.