Opened the complaint on
http://www.actionfraud.police.uk/report-fraud-about-you UK: 0300 123 2040
Overseas: +44 207 386 3620
Find above the information about the 3 companies (WEX / MAYZUS / ALWAYS EFFICIENT).
I am updating the websites to complain in the 1st post. Check if you have already filed the complaint there.