Non payment if death insurance

My husband passed away on the 21st December 2019, I submitted my full claim on the 30th December 2019. I am going through a very traumatic time right now for myself and my 2 kids, a 3 and a 11 year without having to call daily with no one bothering to give me feedback, call centre agents escalating, but assessors not bothering to give feedback. I am most frustrated at this poor service.