Role problem

So the case itself is fine, the size, inside everything ok. But a disaster are the roles. At the 2nd use in the hotel was an easy role out. So gather up all bearings, rings and washers (all very greasy) and carry case. I then complained at my house, because I did not want to send back to Germany the suitcase. Role was replaced by payment. Two weeks later in Hamburg Messe. Broken the next roll. This time they blocked. So repair costs again. If after each use a repair is necessary, the case is not worth the money.