In brief: UK: BullionByPost.co.uk ATSbullion.com RoyalMint.com Worldwide: BullionByPost.com Tips: – Check current negative reviews at Trustpilot. The company may have gone downhill lately. – Do they need you to upload ID or make a deposit before they sell you a single coin? Vendors are way of fraudsters, especially if they, the vendor, are not internet-savvy. […]