Swirl Set of 6 Highball Glasses

I purchased this set and had been using for a matter of months before the internal cracks and chips started to come out. We only use these lightly among two adults in our house so I know they were not being treated poorly. While the marbling is beautiful it also appears to lead to this drinkware's slow demise. At about 8 months in, the last of these glasses finally cracked through. I contacted Nordstrom's customer service to alert them of the quality issue on this item. They did not provide a refund and still seem to carry the item. Disappointing all around!