There is no cost to upgrade your account.
I have just upgraded mine to Premier (now to get the Debit Card you need to have a Premier Account).
I suggest everyone to read carefully
all the new terms & conditions.
If you have funds above the minimum level, they will ask you if you want to upgrade as soon as you log in your Neteller account. Don't be afraid, you still see your balance, even if you are set to Standard first!
Also, your funds are insured up to 1,000 GBP, no more (I believe PayPal is a bit above, 1,500 GBP), even if you have a Premier Account, and you must accept this also to upgrade.