Nobody ever lost any reward points, we changed shop software and so were unable to copy the reward points over, an e-mail was sent out to everybody though to say I would give them a discount code to cover the reward points for the first order on the new site, and then after that you get the new discount scheme which is 5% off.
As for the 2 panel pots for £20 postage, that is only if you select UPS as your delivery method, there is also a cheaper option with Royal Mail which I would guess to be about £3.
Again with the account not working, another e-mail was sent out (could have been the same one) to say that there was a generic password, but if this didn't work then just to re-register.
If you want me to look into your points and get a discount code made for you to cover the value of the points, just drop me an e-mail with your name and e-mail and i'll look into it for you.
It looks like I may need to send out another e-mail to explain the points above.