"Disappointed and distressed"

My father passed away recently after a short illness, he was discharged from the local hospital to die at home. District nurses from the practice were seeing him alongside the care team from the hospice. We have no complaints about their service who were fantastic and supported my mum. After his death we are struggling through our grief to work out why the communication has failed and why we are still waiting for a doctor to complete the paperwork, so that we as a family can start the process of life without him. Until today we believed everything was proceeding for the arranged funeral date, with his son travelling from New Zealand to attend. Worried that the registrar had not contacted my mum yet, lead to the discovery that the death has not been certified a week after his passing. This is a group practice and the doctor who last saw my Dad 30 days ago is currently on leave, why couldn't another doctor certify as the last visit was outside the 28 days anyway? This is adding to the distress of the situation and the practice had not notified anyone, my mum, the funeral director, or the registrar of the delay. My Dad was sent home to die peacefully, so the outcome would not be a shock to any medical professional. Ironically my Dad's career was working for the NHS as a Community Dialysis Nurse and in this emotional time the family need to lay my Dad to rest without the extreme distress this is putting on us all in particular my mum. We are unsure if the paperwork will be completed in time for the arranged funeral and my brother has booked his flights to travel from New Zealand. The card my Mum received today from the surgery although intended to give comfort has done nothing more than upset and distress her further addressed to the family of the late (name of my Dad), my Mum is also a patient at the practice and I'm sure she will be listed as the the next of kin, a more personal touch would be to address it to her! Inside there are offers of support and help from the practice, the only help we need from yourselves is to get the paperwork done so that we can organise our farewell to a great man.