loll.... "Where I'm from" does not make the slightest difference. When you sign Blizzard's TOS it makes it VERY clear that you will bound by U.S. law which firmly establishes the US as lex loci (look it up.).
What you're saying is the equivalent of: country A legislates that all citizens of country A should not pay for goods delivered by any other country. A person from Country A then signs a contract for goods delivered with someone from Country B, agreeing that he will be bound by the laws of country B, and then points to the laws of country A as a reason not to pay. Sorry mate - you're wrong on this one.
Actually, he isn't actually wrong. The ToS is a contract between the player and the company, however, the ToS is only a baseline reference.
For a business to sell a game, or a service, or establish a business within a country that is not its origin, it must abide by said countries law. An example of this, is that in the US you can do refer a friend and gain pyramid scheme bonuses in WoW. If you are from any scandinavian country and attempt to sign up for refer a friend, you are told you cannot because you are from these countries. This is not a choice of Blizzard, this is because these sort of reward programs are simply illegal in scandinavian countries.
The same applies to the terms of service, if Blizzard believes that you as a player broke said terms of service, they will have to look at legal options within the country of residence of the player. You CANNOT apply foreign law to any player that does not reside in the same country.
This is also explicitly mentioned in the Blizzard terms of service in more then one place, here are a couple of exempts for your reading;
For our customers who access the Service from Canada, Chile, Mexico, Argentina, Australia, Singapore, Thailand, or New Zealand, other laws may apply if you choose not to agree to arbitrate as set forth above, and in such an event, shall affect this Agreement only to the extent required by such jurisdiction. In such a case, this Agreement shall be interpreted to give maximum effect to the terms and conditions hereof. If you access the Service from New Zealand, and are a resident of New Zealand, The New Zealand Consumer Guarantees Act of 1993 (“Act”) may apply to the Game and/or the Service as supplied by Blizzard to you
Those who choose to access the Service from locations outside of the United States, Canada, Australia, Singapore, or New Zealand do so on their own initiative contrary to the terms of this Agreement, and are responsible for compliance with local laws if and to the extent local laws are applicable.
It is however also very important to note that a terms of service is created by a company and its lawyers, it is not set forth by a judge and as such its words and agreements should NOT be taking as factual and lawfully correct, as such any agreement that straight up tells you "You may this, and this, and if you dont, then this" should not be accepted as factural consequences, as the mentioned consequences may very well not be legal locally and even in remote countries.