well that's not Microsoft's problem...
Lets pretend for one moment there is a recall...
To make use of the recall you have to take your phone to a repair centre. They will return the phone and you will get a new one!
Have you actually reported the problem with Microsoft directly? Forums are not an official bug or service reporting system or tool.
Just as an FYI, I took a risk and bought a MS Band here in Australia. If my Band breaks its my problem and I have no recourse on getting it fixed short of flying to USA and taking it to a MS Store or service centre.
This is a rick I took and was fully aware of buy buying the Band in a market where it is not released.