Dear Sony 'customer care'

I am writing this new posting, very well aware that there are already a significant number of users on this forum (myself included) that have raised tens of pages of discussion on a problem that you are cleary refusing to address. A solution has been found by users that is proven to work, yet you have so far refused to recognise it.  In addition now over 220 people have signed a petition via Facebook identifying the scale of the problem you have caused with the introduction of V4.1.1 firmware that is not fit for purpose. Please read my FB posting from yesterday below....

I'm back on a train again today and this is awful - £329 invested in 'best in class' noise cancelling headphones and now after the 4.1.1 firmware downgrade, I get to listen to everyone else's phone conversations again - what on earth have you done Sony?

This is unacceptable - there are well over 200 people already signed up to publicly complain about this degradation on this [FB] group alone. You may not 'recognise' FB but this is your customer base. How you treat us when you render your own products no longer fit for purpose, is where your credibilty lays bare to scrutiny.

It is now time for you to acknowledge what you've done and respond......[already] your 5* reviews are being superceded by  MUCH less favourable updates and people may be less enthusiastic to invest in your next release of n/c products.... Just a thought. I for one will be returning these to my supplier in exchange for Bose QC35iis if there is no response from Sony in the very near future.

Perhaps all those affected may choose to pass this message on to whoever they think best.