Unable to cancel inadequate Liberty life policy

I have been trying for weeks now to cancel my Life Policy with Liberty. I spoke to an unhelpful consultant at Liberty and submitted all the forms and surrender docs to Liberty. I was then informed (by bot) that the policy was ceded to Nedbank (Germiston). Nedbank advised me that they require a Proof of Cession document from Liberty which will have the bond account number that was ceded.

Nedbank will then issue a Cession cancellation Letter.

Liberty (or a bot) insists on a Cancellation Letter from Nedbank first.

The proof of cession comes first.

At this point my life is under insured by an expensive, inadequate Liberty Life policy that I am forced to maintain due to poor processes at Liberty.

Please assist me urgently to obtain the Proof of Cession document from Liberty.