It's not fraud, but it may well be misleading advertising. It confuses customers about their rights, and creates wrong impressions about the rights they have if they were to buy competing products. In many European jurisdictions misleading advertising is also against the law.
That's only regarding advertising, btw - Apple is still entitled to offer extended warranties with more comprehensive coverage than what the law requires, provided they state clearly what the customer gets.
Well, in general I can only advise to walk away from any deal which sounds fishy - there is no amount of money which can compensate for that. That's because a con-man will *know* what the con is about, so anything he'll offer as guarantee will always be worth less than what he expects to gain. Trying to outwit a con man is a fool's game.
Otherwise it wouldn't be irrational to accept bitcoins per se, but it's difficult to see how that would ever make sense - it's not impossible, merely not compelling. You could also offer to pay in silkworm futures - if you just happen to have a large amount of those - you will similarly have problems finding someone to accept the deal, and for similarly reasons: your potential business partners will not have any idea how much silkworm futures are worth, how to convert them into money, how to transfer and handle them. Just looking into that is effort, and most people will be unwilling to invest that effort.
That's why money is such a great trading tool, and has almost completely replaced bartering with goods.
You could achieve the very same thing without using bitcoins. Disregarding the risk of using bitcoin exchanges, and disregarding the quality of this particular market - if I get paid in USD, I can buy gold or gold futures for that. The extra step of converting into bitcoins first gains me exactly nothing.
In the same way I could convert my USD into EUR and trade on the Athens Derivatives Exchange. But why?
I don't really see anything compelling about your example. If you want me to do some work for you and we agree on the price, I would prefer not to receive payments in bitcoin - it's a hassle for me. Certainly I would want to be compensated for that hassle - if I bother at all - so using bitcoin for that transaction would be a disadvantage to you.
Assuming you would offer me more significantly more than the amount asked, simply by going the redundant bitcoin step, I'd step away from the deal since I'd take that as an indication that something fishy is going on.
Anyone can make an omelet with eggs. The trick is to make one with none.