WotNxt

Thank you everyone I am so 😊 

Thank you! Will PM you now Chris 👍

WOWWWWWWWWWWWW Unbelievable!! 😍
I have never ever won anything and then win this!!! OMG you all are the greatest. I love reading everything on this forum.
You all are the best!!
Shout out to everyone on the forum 👍

Sure, they all qualify for sterling, but some of them exceed sterling standard, which is not quite the same as calling them sterliing, and I agree that stamping them as "Fine Silver" is questionable, as is the behaviour of numerous vendors reselling them as fine silver when they do not know, and have not tested them. At least the actual silver content exceeds the stated weight.
If the makers could be questioned, they might argue that they do contain 10 ounces of fine silver, but it still does not excuse the somewhat lax wording.

I agree.
Most people I have seen offering these for sale omit to disclose any test results, probably because they do not know.
This is partly why I have published detailed information here, on Flickr, and eventually on our website, as we believe in transparency, honesty, and full disclosure.

@Dee 
Think the initial confusion was using the word 'sovereign' in your initial post. I know what you meant, although a 'sovereign' refers to a particular UK gold coin as others mentioned above. I assume that you were referring to silver coins that were also minted as a currency, by a National mint, etc.
With silver coins you need to consider the 'spot' price of the metal itself (currently around £14.50 per ounce) plus the 'premium' on top of that which is essentially the cost of getting the metal, melting it, making into nice shiny coins, and distributing - this is why a one ounce coin won't be for sale at £14.50.  Then there is the 'numismatic' value, which refers to another type of premium based on the desirability of the coin among collectors/buyers.
a) So one ounce of pure silver, in isolation, should cost £14.50.
b) A generic one ounce silver coin with no particular collectible value seems to currently be available for around £20 (or spot + 38% premium)
c) A rare, perfect condition one ounce silver proof coin from a hundred-odd years ago might cost (these figures as an example only) £50 (or spot + 245% numismatic premium)
Stackers like to buy (b), collectors like to buy (c), and everyone would like to buy (a) but generally can't.
There's loads to it, I'm new to it myself - the buy/sell pages will give you an idea of roughly what stuff should cost.
To answer a couple of the specific questions you ask though:
The generic coins (what I think you meant by 'sovereign') that you're best looking at are: silver Brittanias, Canadian Maple Leaf, Krugerrand, Philharmonics, and maybe American Silver Eagles.  I'm sure there are others but these seem to be the most common, and usually have the lowest premiums at traders. They're popular & common and so have little numismatic premium (though some years did have low mintages, which would change this fact, but that's one to read up on.)
Where to buy - the forum selling threads are first stop, as you're likely to find some nice deals and won't have to wait long for delivery if the seller is also here in the UK with you. If you do buy from online traders, don't buy silver from UK-based dealers as you have to pay VAT.  There are European dealers from whom you can buy without paying UK VAT. I don't really study tax law, but I understand that this is totally above board and isn't the same as 'avoiding tax'.  Obviously, the delivery charge would make this a bad deal for small purchases, usually between £9 and £12 (in my experience) for a small package.
The general advice here seems to be to avoid eBay unless you are very confidant in the seller. there are plenty of fakes (less so with silver than gold, but still) and the seller will be paying eBay fees on the sale. This means that they are making enough on the sale to cover those fees, and so you're likely to pay over the odds. Of course, there ARE reputable sellers and good deals on there too, but just tread carefully.

Considering the amount of posts here in the £17 range recently, I wouldn't think £24 is a viable price at all. 

Use cross shredder. 

I too received my coins from them today!
I think half the weight came from those bloody German brochures!!

22 Brits available at Chards. From 17.29, no additional VAT, cheaper if you buy more. Postage on top. 
They won’t last long -> GO GO GO 😆

https://www.silver-to-go.com/en/silver-coins/maple-leaf/1-oz-silver-maple-leaf-coin-2020/
Still premium-tastic but better than I've seen from a dealer for a while. I'm tempted but I'm holding/hoping for premiums to come back a smidge so RM stuff or maybe mid size bars are a bit more sensible. Lovely coin the maple though 👍

People are buying silver on eBay at over £28 per Oz right now, and I'm not talking about premium stuff😁

Not sure about reselling and keeping their premium, but someone was asking 43 pounds/coin, not including postage, in the trading section. And they did sell.
So your 23/oz or 46/coin delivered is similar price if you buy 1 coin. If you buy 10, then you save a lot of money.
Not to mention that, if you buy only a few and shipping makes them a little too expensive, you can store them with the dealer, and reclaim them at a later time, when your PM value to shipping ratio is convenient for you(assuming you will buy other products over time).

https://goldsilver.be/en/1-oz-30-gr/123-1-oz-silver-kangaroo-1.html

Random year is .5 pounds cheaper than the 2020 version.

You got it!