Nwt cos white mandarin collar shirt

nwt white small mandarin collar shirt. i bought this on here, and after receiving, saw there was spots on it, theyre really faint, like someone accidentally spilled tea or something on it. I was supposed to return, but when it got accepted, it was a weekend, and they counted my two days as that, snd there's no post office close to us. so just trying to get some of my money back! I haven't tried washing in order to leave tags on