To be honest, it sounds like the company is pulling a fast one and doing whatever they can to get you to give up (maybe they plan on selling the codes separately?)....the longer they fob you off, the more likely you will say "screw it" and give up. Companies that do this probably keep on doing it as people don't have infinite patience to deal with their crap. If it was me, I would keep on at them (especially with the support of Sony)...what have Sony done about it? and I would threaten them with legal action citing breach of contract, false advertising, even fraud (trying to say something is not part of the product when it clearly is)...I would contact my local Trading Standards office (do you have an equivalent in the Netherlands?). Have you been emailing the local office of the company or the head office? I would also threaten to go to the media and expose their "dodgy and illegal business practices". I admit that I don't accept any crap from companies and refuse to let them bully me, albeit by whatever means and I will do what is necessary to receive what I have legally and contractually paid for. Hope you get it sorted eventually