TravelPro Failed to uphold warranty Chicago Illinois

Purchase two sets of luggage from Travelpro - 6 pieces total. 

Luggage purchase totaled over $1K. 

Within 6 months one of the pieces of luggage started to have issues with the wheel - the wheel would stick and would not roll properly.  This was due to normal use, nothing was dropped on the luggage and it sustained no real physical damage.  It is just a product that was poorly made. 

Contacted Travelpro to get it repaired/replaced as it is under warranty.  They told me that they would pay for the shipping but couldn't "incur the cost" of a box (their words, in writing).  This is for a large set of luggage.  They recommended I go to a grocery store to see if they had extra boxes so that I could package and return the luggage.  I'm serious, this is in writing via email.  This is also incredibly bizarre on their part.  They would not uphold the warranty and would not provide a box for shipping the product.  

Buyer beware - they will not withhold their warranties.  Will not stand behind their products.  Will be slow to respond.  Will ask you to go on scavenger hunts for oversize shipping boxes as it is apparently too expensive for them to uphold their own warranties.  Absolutely bizarre and a terrible experience.  Avoid at all costs.