Hi there, it appears A2B went bankrupt in 2011 and was purchased by HeroEco in 2013.
I would try contacting their UK office (details below) or their Netherlands office (can't find the details):
A2B Global Head Office
Unit 16 Bessemer Park
250 Milkwood Road
London
SE24 0HG
A2B UK Technical Centre
Unit 24D, Morelands Trading Estate
Bristol Road,
Gloucester, GL1 5RZ
Phone: 01242 807 420
Email:
A2B.UK@heroeco.com
We have sales and technical teams and distribution centres based in London (UK), Breda (The Netherlands) and San Francisco (USA).
A2B is a registered trademark of Hero Eco Limited
They also have social media accounts which you can see on this page:
https://wearea2b.com/index.php/uk/contact