@ChangeNOW_io seems to be active on twitter answering people to send an email to support and will be assist further. Since you've mentioned that it was endorsed by @bitcoingold, maybe the team checked how trusted the service is.
This doesn't make the service more trustworthy. The Bitcoin Gold team also "endorsed" a website that helped people claim their BTG but also kept all the users seeds and resulted in a loss of over $1 million. Of course they removed the site from their page after some time. But this shows how careless they are.
Here is a thread about the scam:
https://www.reddit.com/r/btc/comments/7dsmvd/my_analysis_of_the_1_million_usd_mybtgwalletcom/