I think it depends who the diploma is accredited by. I might be wrong ( If anyone else has a better understanding please correct me lol!) :hug:
For example, If you want to work mobile you will need to have liability insurance. Most (if not all??) Insurance companies will only insure you if the training/ diploma is accredited by certain recognized bodies, ie City & Guilds or The Guild. (there are others but I cant remember off the top of my head)
When you did the course did they say if they were accredited? Or was the training with one of the main companies, Nouveau for example?
Hopefully someone will correct me if I'm wrong but you could also contact the training company and ask what insurers accept their diplomas or ring an insurance company to see if they accept yours. xx