Disgruntled Customer

I have been dealing with Standard Trust Limited since 2018 to finalise my late Husbands Estate, to date it's still not finalised. I have to continuously follow-up so that I can get feedback of wanting to know how far the process is. I have tried getting hold of a particular individual and it sometimes feel like it's all in vain, whether it be telephonically or via email, the person just does not respond to my emails.