Littlejem I just talked to Gregor from the Elmore Co. and he said he mailed yours about a week ago - he remembers you because he talked to you about looking for someone to distribute in the UK, and that's how I identified who you were. He's not giving out names, just so we all know that. He also said everyone's sample has a 10% discount coupon for any order.
This are his shipping rates from the US to the UK - we'll have to convert from $US dollars to British pounds
If you order under $20 of merchandise, the postage is $10
If you order from $20-$65 of merchandise, the postage is $17
If you order over $65 of merchandise, the postage is $25
1 US dollar is equal to 0.65447 GBP, so let's round it to 0.66
So $20 merchandise is equal to 13.2 pounds merchandise
$20-$65 dollars merchandise is equal to 13.2 pounds of merchandise to 42.9 pounds of merchandise
And over $65 dollars of merchandise is over 42.9 pounds of merchandise
So $10 dollars postage is equal to 6.6 pounds for you
and $17 dollars postage is equal to 11.22 pounds for you
and $25 dollars postage is equal to 16.5 pounds for you.
There. Now I'm confused, are you???

I hope the math is correct, or it'll be even more confusing! You should check it all, anyhow.
So Amazon is really expensive for shipping! And I don't know if the $24 rate you have for Oz covers all amounts you buy, no matter how much the total is that you purchase.
He said to send him an email if you have any questions, and you can always call to order and then you'll get the exact totals. He's quite sure if you order on-line it'll calculate correctly for you.
Good Luck, I hope your oil comes soon, so your back will feel better. Can you take your pain pills if it keeps you awake too much? Maybe if you take one at 4am with the pain, or 1/2 of one, with a heating pad or hot water bottle and some of your oil, you'll be able to fall back to sleep again for a few hours? Just a thought....
I wonder if the acupressure massage that sandybeach, kim22 and I were doing from the library link, would help?