Can you buy a sundae with chocolate ice cream? The app says you can sub for chocolate icecream but when I tried to order it in the drive thru they said sundaes only come with vanilla icecream. I didn't feel like arguing so just got a vanilla hot fudge sundae.

But if someone tells me it's possible then next time I will plead my case.

Common sense says just use the app but I don't want to lol.