Worst customer service ever. I've been waiting for...

Worst customer service ever. I've been waiting for a call back from Margaret the MOD for ONE WEEK! I discovered a valet driver took my keys home after waiting 45 minutes. I had to sit and wait for the valet driver to drive them back to the hotel! As of today I don't know if the valet driver just took my car home or took my car out for a joy ride. This is unacceptable. I was promised a credit which I haven't received. I've called several time and MARGARET never returns my calls. Every time I call she is either in a meeting or not at her desk. This has been going on for ONE WEEK!