Just received a similar reply -
We have received your message that you sent to our unit on April 6th, 2015. In order to evaluate your request about Gold membership status match, we would like you to send the copy of your membership statement which shows the last two months of your flights by using the link below;
Unfortunately I've got nothing with A3 the last 2 months with all of my activity being last year. I might try my Airberlin Topbonus Gold card when it arrives otherwise I'll have to wait for some work travel before I try again.