what you have to be aware of as well is that EU regulations on distance selling does not allow anything to be send 'at the customers risk', the business is always accountable for non-arrival of goods.
that means that non-insured methods are just not viable, well at least for the sort of things Pimoroni sells, except maybe their own range, where their margin might be good enough to afford the occasional hiccup.
... but like I said, Spain is not on my 'ban' list, but the merchandise I send out has high margins so whatever loss there may be can be deemed a 'running cost' so to speak for servicing certain countries considered 'higher risk'.