WD Ultrastar DC HC520 has RMA WD or RMA HGST?

Hello,
I need information about WD Ultrastar DC HC520 (HUH721212ALE604). If HGST warranty, why on label at this WD Ultrastar DC HC520 write “Western Digital”?? For this model WD support RMA in Russia Federation ?? Or this WD Ultrastar DC HC520 without RMA in Russian Federation?? What’s warranty for this model’s WD support? Or this model only HGST warranty?

Or WD support this drive for RMA too?
Thanks.

We have the same trouble. We found, that one of our NAS-HDD (HUS726T4TALE6L4) has errors. I tried to create RMA from WD support, but got “unknown serial”. HGST support sent me to the WD site… I’m from Russia (Moscow) too… Please help!