Sold me a $100 concert ticket for an evening performance, then THEY change the time to 2 PM, conflicting with my established plans for the day. Should be an easy matter to exchange for another day and definitely honorable to refund me, but NOOOOOooooo...
And I can't get a human on the phone, so I just get annoying emails about how they can't do anything for me. Avoid at all costs, or it will cost you...