Our local Tesco has vinegars in two different spots: some are near the spices and oils, and some are in the condiment aisle (lol I initially typed that as 'condiment isle'- interesting holiday spot!) The balsamics/ red wines/ etc are in the first group, and the malt/ distilled are in the second.
I found it to be a very confusing way of displaying them, to be honest. I was in the same situation, looking for white vinegar, and trying to convey to the Tesco information desk lady that I just needed a plain vinegar to use for cleaning was a painful experience. Thankfully, I found it on my own, by accident, a few weeks later. (same thing happened when I asked where the rice cakes were at another Tesco. The lady took me to the bakery section... when I did finally find them, on another visit, I did double-check to see that they're called rice cakes here. Indeed, the Tesco brand is called Tesco Rice Cakes. sigh)