I've sent a complaint to the Office of Fair Trading (UK equivalent of America's national consumer rights government body) regarding the removal of in-game content (vehicle BPO) that I have purchased from Sony, which is now being removed by a third party who was not party to the purchase agreement, and who is infringing on my consumer rights. I have made a complaint under the following circumstances, failure to comply with Sales of Goods Act 1979, as well as a complaint regarding underhand business tactics and poor customer service.

I would also like you all to note a little extract taken from moneysavingexpert.com

Understanding the law
If you've got a dispute going on, it's important not just to know your rights, but to understand how and why they work.

Every time you buy something, be it a mobile phone from a mate or a week in Cuba from a travel agent, you make a contract with the seller.
What does this contract really mean?

Both you and the other party agree to terms and conditions. The seller has agreed to provide your 'statutory rights'.

*Note the phrase the seller has agreed to provide your statutory rights, not a third party developer, producer, manufacturer, burger van owner or car salesman.

I encourage everyone to exercise their consumer rights and seek legal advice against CCP, and do not be afraid to take action If you get the go-ahead From your legal advisor or consumer rights group, as I certainly will be.

Part of my rights as a consumer is to request a refund of equal measure if I am not satisfied with the terms offered when one party to the purchase agreement decides to change it. As a consumer I am legally entitled to request a CASH refund of equal value If CCP decides that it does not want to honor the original agreement. I suguest you educate yourself a little more on consumer rights, and stop banging your head against EULAs.