Thank you for taking the time to share your recent experience with us. I have spoken with our technicians and reminded them that writing things like "X" is unacceptable and I am sorry that was the service you received. I did find that your model has staggered wheels. because of this the wheels stay in the same place and do not get rotated. This should have been communicated to you. We are always striving to be better and today you showed us that we have plenty of room for improvement.