I just had an idea, I might send the customer some coupons/vouchers with the payment. That way at least I have something tangible that has perceived value which has been sent in relation to the payment. Sending those coupons might also help me get some sales on my merchant channels.
I am curious if anyone in the UK has been accused of money laundering, I have not found anything in threads however it is something in the back of my mind. I assume laws are not yet adequate in regards to digital currency, how can the court for example differentiate game currency from Bitcoin. Not that I underestimate the potential risks, as the service grows I will look further into the legalities. Worst case scenario the service gets shut down one day and no users lose any money as it is not store with the service.
Selling paper wallets with xxx Bitcoins on would work though probably be classed as commodity sales, and the average person will probably find paper wallets more complicated. A problem with keeping quiet from the law is that in practice, if they wanted to catch you, they'd get someone to use your service, in and out, then after all of that would turn around and snatch you up.
The reason why you shouldn't need to register as a bank is the method you're doing it as. 2 separate layers, it's not really an 'exchange' per se, people are depositing money into your account, and you're giving them Bitcoins (which could be a friendly gift for all anyone knows).
Receipts/records are a problem.
Having them indicates you're running this type of business.
Not having them could get you into a lot of shit if you do well.
Sending email 'invoices' would work fine instead of coupons/vouchers if you so choose. Or possibly writing up a ledger for yourself, noting all the income into your bank and what its specifically for (so you can add in expenditure also). Then keeping the ledger for the day when it's needed (either they come knocking, or you're doing so well that its time to declare for tax purposes).
It's technically impossible to get caught selling Bitcoins the way you propose, but they'll catch you on tax avoidance, or money laundering, and probably throw in drug dealing in there for good measure, they do like to bleat on about drug dealing...
Worst case scenario is that HMRC or Internal MI5 Drug Trafficking affairs hears about what you're doing, monitors, gets someone to use your system, then turns around and throws backdated tax and money laundering stuff at you, closes and confiscates your bank/s and starts legal proceedings against you. It could be as easy as them just closing your bank account and taking all your money on there, but depends what side of the bed they woke up on.
It really depends on how much business you plan on doing.
I'm all for tax avoidance, as I don't believe in greed led wars, but don't get yourself locked up over it..