myHermes simply can't collect or deliver parcels. This is why they're ranked at position 33 out of the 35 parcel companies on here, rightly so.
If you do as I did - ignore the online reviews and use them anyway - when it goes wrong, expect customer service to be rude, dismissive and give you cocky answers. They will ignore your problem until you go away.
You can find their CEO's email address on LinkedIn. But you won't get results from her either - she ignores everything too.