well done my friend, very well done ^^^. never "blew/lost yoru cool, stood firm yet remained polite & professional and you are 100% spot on when it comes to attitude...it IS everything (which obviously the 2nd supe had but the "1st supe" needs to go back to attitude 'n customer service school")

now, one question....
you asked for the fsd (^) and you got a supe
the supe was a putz
another supe comes over
2nd supe solves the issue ^
were you able to notice if 2nd supe "outranked" the 1st supe?