Try amagimetals.com or my own company https://bitfunder.com/asset/TU.SILVER -- we order exclusively from Amagi Metals -- the benefit from ordering from us is that we ship immediately, Amagi metals sometimes has to mint the coins or order them before they can ship to you and it can take a very long time.

For example they cannot ship Canadian Maples right now (they're delayed) but I can get you Canadian Maples in 7 days anywhere in the world. We just got them in from Amagi ^^ Plus, we're not involved in the order process on BitFunder, and we only deal in BTC, so you will never get any kind of "story" about how the exchange rate isn't working out or something went wrong with the website :p