two purchases from them and no issues...helpful over the phone with sizing questions, and received orders within 3 days IIRC from NYC to seattle. I wouldn't worry, more than likely a shipper issue than a gentry issue.
'doesn't work' how? errors/no values/something else?my guess is you have calculation set to manual or there are errors or NAs in lookup arrayalso, get in the habit of using index/match over v/hlookup--much more flexible and impervious to mistakes
if you find alpaca itchy, you could legitimately have a wool allergy. easy enough to test for this via your GP/PCP
schneider scarf composition varies, so prob not a reasonable proxy...most people find mohair itchy to some extent