In the midst of a terrible experience. This is the...

In the midst of a terrible experience. This is the second time I've used them. The first time was excellent. This time someone in their system made a mistake and now I am being made responsible to find and fix their error. They shipped a package that had the correct transit number affixed to it, but it wasn't my order. Now they refuse to track the error and expect me, their customer, to do their work for them. Meanwhile I am still without my parts. Obviously if everything goes right they are great to deal with, but if they screw up, you, their " VALUABLE" customer, get it in the ear.
BEWARE.