I remember finding a shop in the UK where they sell some, had to look it up but here you are: https://www.nextdaybullion.co.uk/products/gold/goldbacks/
They don't come with a cert btw, I think you can find all the info on the bill. I haven't ever seen a cert added to be honest..
Thanks so much that’s very kind of you. I will look to purchase now. Is there anything I should look out for on the bill. Sorry for all the questions I’m a newbie when it comes to goldbacks.
I don't know as I don't live in the UK, I found it recently when looking for sites in Europe..
Keep in mind that on that website they are awaiting stock so you probably have to wait a little before they arrive, might want to have a look at that as well..