I think the different badge has got them covered, but I'm not sure. Back in the 70s an officers confidential order came out to the effect that officers were not to reprimand scruffy herberts in the street wearing ex-RAF greatcoats, etc, as these had been sold through surplus stores, and as long as the wearers were not impersonating service personnel they were not committing any offence. Annoying, agreed, and I am just amazed that anyone would take out one of these loans.
Btw - small point for the OP, there are no WRAF officers any more (or ORs for that matter) as they are now simply RAF - same story for Wrens and the navy