Not able to update deceased mothers death certificate - incompetence MDB and RCS

My Late Mother who passed away in May has an RCS account. I have had repeated calls from the call center agents at MBD attorneys pertaining to my mothers RCS account. They call me every 2 days and I explain the same story over and over to them. I have submitted my mothers certified death certificate via email and I still get the calls. When I asked to speak to a supervisor I get told they are working from home and do not have contact details with me.

I tried calling RCS directly to submit the death certificate - no answer and call center does not work. Also no contact details on their website that work. Including on their Legal department tab.

Tried calling MBD directly as well and same story - number just rings and rings. No call center - no contact details.

Its absolutely disgraceful and disgusting especially considering that it is very painful having to talk about this subject again and again.