Hi ladies - I tried searching but most of the threads I found dealt with bag cleaning/repairs/refurbs. I have a collier de chien cuff, but the o-ring is now missing. Is this something that can be fixed by Hermes? Does anyone have contact info for a preferred person that I should speak with? I emailed the website and they told me to contact stores in NY or LA. I am closest to the Chicago store. Thank you!