Pure strategy map not unlocked

Hi, the tooltip on map selection screen says that Deeper Well pure strategy (massacre) is unlocked after beating it in campaign. I have finished it, but pure strategy is not unlocked. Anyone having this experience ? 

 

I wrote support 14 days ago, but no answer. 

You may not be aware, but Pure Strategy and Mixed Mode are not currently available for Massacre difficulty (or with Rift Mode). They have stated they are looking to add these in the future, the main issue is how to work Pure Strategy with Sirens in Massacre. Sirens rely on DPS and cannot be targetted by towers, so it will be a difficult task to balance PS in Massacre and having loot with some value. I feel it might be a while before we see PS for Massacre as I think they are concentrating on getting DDA on Xbox and working on Trading which is supposedly the second part of the update we got end of last year.

Edited February 22 by dizzydiana

I didn't know, i do now :) thank you :)