xxxxx.adsrv.eacdn.com/
I uncovered this service last December when they allowed their security certificate to expire - so stopped serving ads.
( see
https://www.gpwa.org/forum/income-ac...ed-220685.html )
It's a company called Ecom Access - a related company to Income Access - also set-up by Nicky Senyard.
Looking at the domain I assume it's just the adserver - and Gala have moved from in-house ad serving to a fully supplied Income Access solution.
Whether it's related to a reduction in signups is impossible to tell - if your prime markets are Northern Hemisphere (UK, Europe, North America) then remember that June is holiday month and signups are usually way down from these regions.