DON'T USE HERMES (the courier)
Last week I bought something from an eBay seller. Hermes were supposed to deliver the parcel on Saturday afternoon, while I was in. No call, no card. The tracking information now shows it on its way back to the sender! The courier is supposed to try three times, but didn't even once!
Trying to contact MyHermes Customer Support is a joke. There is a phone number, if you can find it, but it directs you back to the predefined website answers. There you will also find a digital assistant, which is not very good. Eventually I found a route to request a phonecall. I'm not holding my breath!
Judging by the evidence on Twitter, Hermes are utterly shocking for customer support and for the (lack of) success delivering parcels -- many, many reports of lost, damaged, mis-delivered, or stolen. (Incidentally, the Twitter account is @hermesparcels, NOT @myhermes, who is just some joker with a deliberately confusing handle.)
Hermes are cheap for a reason. I would not be surprised if we see them going into administration very soon. I used to use City Link, who were cheap but very good, and I narrowly avoided losing parcels and money when they suddenly folded a few years ago. So that is another reason against using Hermes.