If anyone is still looking for a place to get your Yotaphone 2 repaired, this is the info that Yota Devices provided me, the front glass of my phone also broke.
You can contact either the UK service centre:
Premiere Eurocom
Unit 412/413 Centennial Park, Centennial Avenue
Elstree, Borehamwood - WD6 3TN
United Kingdom
WebSite - http://www.premeuro.com/RepairForm.aspx
Phone +44 20 89538478
Or the one in Germany:
dat repair
Ingram Micro Services GmbH
Am Sophienhof 8-10
Flensburg - 24941
Germany
http://www.datrepair.de/
info@datrepair.de
+49 461-95775-0