In Canada we use acronyms too often n for example WCB means Workers Compensation Board but in another country it could mean Toilet for boys! Their system is computerized and there r only so many options the computer will accept when processing it at the other end. It is like when I was a kid going to Catholic school, we were supposed to wear black shoes of a certain model available only at BATA shoe stores and I have seen girls buy black leather colouring to dye their shoes from brown to black. There was no more black shoes and luckily the nuns accepted my brown shoes.