I have not replied because they reached out to me because you contacted them.
They should be replying to ALL REQUESTS as part of their job NOT because you babysit them.
Also, Adobe has bought Marketo and Magento so I expect new branded certifications. I hope in 2019, we'll get more details about them so I'm not to going to do anything with Adobe certifications until I see a roadmap because I think it's a waste of money doing them now with them potential changing later. I'll still train on the products but that it.