Different quality level of middleman?

Hey wine pros. There is a wine shop around the corner in my small town that has been getting some decent to fairly impressive bottles, but I’ve noticed a high spoilage rate on the bottles. The shop itself seems fine, not too brightly lit, and a good cool temperature. And yet the shop has the highest rate of spoiled bottles where I open the bottle and I’m like, “this is not right at all.” They have been good with refunds/exchanges, but I’ve taken quite a lot of bottles back. Is it possible that certain shops get deals from less than honest middlemen with bad storage or bad sourcing in general? I assume the answer is yes but I’d like to hear something more about this.