Nonexistent service and assistance from Liberty Life

My late father left me a claim, losing a parent is the worst thing that could possibly happen. 4 weeks ago i submitted my paperwork, more documentation was requested which i supp**** on the 03/05/2021 - since that i have phoned over 15 times , begging for assistance as i am emailing everyday with no feedback on my claim, with the operators transferring me to "a manager" and then cuts the call. (today i was cut off 5 times and was holding up to 20 minutes at a time) Today i was told that Liberty cannot get hold of the person working with my claim?! to add to this on 2 calls last week , two different operators stated that they cannot assist me ? I have had enough, i was again promised this morning three times that i will be phoned by a manager (same as monday and friday) with no one contacting me. This means if i do not keep phoning and begging for help, my claim is just lying there and no one is working on it. I had enough of this utter incompetence , and Liberty is making this grieving process longer. This claim should have been paid out with all the documentation sent long ago and the last on the 03/05/2021. I am now "stuck"as it doesnt help to phone or email, no one is assisting me.