DISCUSSING SERVICE

The worst service I have ever received as a consumer. I reach out RCS advising them my father the passed away and they need to advise the way forward. Bare in mind my father passed in Jan already and I reached out to RCS in Jan already to advise the way forward after sending all the documents to the various departments and nobody got back to me with the way forward BUT HAS NOW HANDED THE ACCOUNT TO COLLECTIONS AND THEY CALL EACH AND EVERYDAY HOW? I AM FED UP AND WILL TAKE THIS FURTHER TO THE OMBUDMAN