Yuck! Missing Sugar!

Once I Had Bought This Today At 11:10AM Saturday 15, The Sweet Tea Had Tasted Horrible With No Sugar. Where is The "Sweet" Within The Sweet Tea?
North Plains Location.

When I went to a McDonalds last summer in New England I couldn't find Nestea Iced Tea so I selected Sweet Tea. I took one sip and had to throw it out. My taste buds could not adjust to the strange taste. It was very disappointing since I wanted some refreshing iced tea. I would never drink it again.