I looked into your order for the two mufflers. It was shipped as scheduled, but there was a delay with the shipping carrier. It was in their possession and it was expected to be delivered by the 13th. The delivery dates we provide are estimates and not Guarantees.
If you view your tracking number it states it was picked up by the carrier at 4:05 am and one minute later at 4:06 am the time stamp states it arrived at the carriers sort facility. The following day it was delivered. Due to the delay the carrier was not providing accurate tracking.
I am in Customer Service and I don't have any email from you regarding this order. You may have contacted a member of our sales team or another department and I apologize on their behalf for the experience you said you had. I will look the contact you had with them and address the issue with them. You can reach me directly by email at firstname.lastname@example.org if you would like and I can offer you a credit on this order for your frustration.