Oeneo Closures USA, makers of a composite cork product that claims to be free of the possibility of taint by means of a combination of natural cork and a "high tech solution known as super critical CO2 (super critical is a physical state 'between' a liquid and a gas, where carbon dioxide acts as a very efficient solvent to remove TCA molecules —as well as 150 other compounds);" want you to learn more about corked wines and teach you how to pick out TCA taint.
In order to prove their point that TCA is wrecking your wine and mine, they have offered a kit (appears to be free) to train yourself to smell TCA. I've ordered a kit and will let know you how it works. I already have a high sensitivity to the scent of cork taint and am excited to try to hone it more.
You deserve to send back or return wine that has taint, but you need to know what it really smells like to be confident your nose is correct.
Taint happens to the best of wineries by getting a bad batch, but it also can cost dearly, as BV found out a few years ago, when it infests a whole area of the winery. BV ended up selling tons of wine at fire-sale prices during the spate of bad TCA news. Yes, I got a whole bunch, and not one was tainted! My good luck.
I imagine they have a limited amount of these kits, so I would check out the link above quickly if you're interested.