It was hard to believe that gold coins would be sold with only a 2% premium to the spot price. I could somehow believe if you had been buying gold bars (unlikely, to be honest), but certainly not coins, which typically have hefty premiums. So I decided to check the info by the link you posted, and voila (emphasis added):
Most of the coins we sell have been in circulation, and must therefore be considered bullion grade. This is not something to worry about, we have team of experts that check each coin that passes our hands for its grade, carat and purity, and we manually check coins to ensure they reach our standards, and ensure there is no damage beyond expected wear of the coins/bars
It seems that you are buying used coins, so no surprise that their price is close to spot price.
Well considering some of the sovereigns I own are 100+ years old then they are obviously circulated
And you know what, a gold sovereign 100+ years old is worth just the same as a mint fresh 2016 sovereign (maybe even a little more depending on year)
If you are paying a premium for shiny gold bars then you are wasting money. I would advise buying gold as close to spot as possible whether circulated or not. I also speak from experience as I recently sold my 1st stack worth about £55k.
Last pic I took before selling up (there was a few more coins added after taking the pic)
My new stack consists entirely of sovereigns which are internationally recognised, highly liquid, CGT & VAT free, small fractional gold content.
Bullion is bullion so why pay more?