Wendy’s

We went through the drive thru– I ordered a grilled chicken sandwich, no sauce, add onion and pickles along w/​a baked potato w/​sour cream and chives. We pulled away to go get Rally’s for my boyfriend and as we sat in the lot ready to devour our food– I pulled off the bun to see the chicken coated in mayo– wth? Thankfully we hadn’t continued driving so we went back and I went in to get this corrected. I didn’t receive a sorry and was so hungry it didn’t matter at this point I just needed food.
The sandwich was good and although the potato looked suspect, it tasted fine.
I don’t frequent this area and if I did, I would go somewhere else. How does no sauce = coated w/​mayo? The receipt even stated no honey mustard which is the only ‘sauce’ I thought it came with? Anyway, it doesn’t matter– I won’t be back.