Spelling

Customer: "Can you spell support for me?"
Me: "sure, that's s-u-p-p-o-r-t".
Customer: "ok, i typed s-u-p-e-r-t".
Me: "that's s-u-p-p-o-r-t, actually."
Customer: "ok, i've got s-u-p-p-e-r-t, is that right?"