The problem is acting so up in arms and throwing in ridiculous claims about human rights is making people think they are a loon. If they came here and said vodaphone have done x,y and z calmly and without such claims people would have advised them and understood more. Hence many posters pointing out that they are making themselves look unhinged and that no one will take their complaint seriously.
If I was you OP I would delete that forum post and rewrite it without the details of your sons disability and outrageous claims. You will get a lot further that way.
Also the monthly fee generally covers your talk time with a 'free' phone, you can put the sim into any cheap phone and use what your are paying for whilst the battery for the other phone is sorted out.
If like you say these batteries are not available anywhere and even Sony don't have them yet then what do you expect vodaphone to do? They can't just magic up a battery that dosnt exist.