For deposits, I have a completely separate email address in a completely different name to not only my escort name, but my real name too. It is not published anywhere online. As I tend to ask for the same e-gift cards, I actually have two different emails I use just as another layer of protection and privacy.

Neither email address are published online because I don't want spam in those particular inboxes, nor do I want random men contacting me with enquiries. Additionally, I know some companies do checks on e-giftcards at the point of purchase, so it makes sense to me not to use an email address that is googleable or connected to my website or escorting name.

As an aside, I use a variety of email addresses as I find it's a good way of tracking where enquiries are coming from. I not only have a dedicated one for deposits, I have another for gifts and several as points of contact.

I've only ever had them sent to my work address and I don't recall them having a name on them, apart from when there's been a card to accompany them. Why would somebody ask you for ID when buying something?

at the shop they may want to check that you are the genuine owner of the giftcard specially when it's been delivered by email

Why? Nobody cares who owns a giftcard - you could have picked it up off the ground in the street outside?

If you're that concerned, just spend it online