SERIOUSLY?!

So i was at Subway in Canal Walk Saturday night, and after standing the queue for nearly 45minutes an short lady with a black and red weave helps me.I asked her for the Italian roll after her cutting the roll open i said sorry ma'm i forgot can i please change this for the wheat one instead...SHE LAUGHED AND ASKED ME. ARE YOU SERIOUS?!! AND LAUGHED...i said please i forgot my husband prefers this, she looked at said \WE DONT HAVE"... but very rude!...i was disgusted by her service that i did not want to buy it anymore but my husband was so hungry i thought \""you know what"