No, there is no truth to it. No idiot is going to get teleported and then hypothetically run into a wall for 5-10 minutes because you "lost control of your character" if they're a real player.
If you've examined the TOS at all, you'll notice that Blizzard doesn't need proof to ban you, they don't ever have to even provide you notice that you've been banned either. They can ban you because of your race if they wanted. They can make any decisions with their game that they want, including turning the game servers off for good.
If you want to get your money back after a ban, file a fraud claim with your bank, or call customer service and tell them that you'd like a refund and state your case.
You can demand whatever you want from anyone you want. Demanding things doesn't mean anyone needs to comply with your demands though, especially when you have very little control over the situation.