I feel for you. Not that I like relying on fast food places except when in a bind, but this reminds me of the pros and cons of asking for a bunless LC burger at burger joint. Asking for no bun but extra lettuce/veggies instead is usually not that hard to communicate in and of itself... but with non-English speaking staff as is the norm, I find it very hit and miss to then also get the point across of no ketchup, no mustard, and no mayo (i.e. no crap) too. They are obsessed with the idea that if you don't want condiments, you don't want any veggies (salad) either.

Much of the time, they interpret this as no anything except the meat, and that's what they may give me- a little bag or box with nothing but meat! So sometimes, I skip the no bun request and pick the buns off manually, and order a side salad for 99 cents, just to save myself the trouble of them thinking "no anything." But gosh, this ain't rocket science, folks.