Absolotuely disgusting service

I was previously insured with Novation group and tried to get a letter confirming my previous claims. First I was told they can't pick up anything and then was referred to Nikkel brokers who also said that they didnt have any information regarding any claims and that I had to call Novation group again. After going back and forth with no luck I finally got assisted by Nonhlanhla Shoba who was of no help at all. I've been in the insurance industry for over 11 years and from my experience I have never dealt with anyone who shows no regard to assist a previous client with a claims letter. I told Nonhlanhla Shoba that the claim dates were incorrect and it has to be rectified she insisted that it was what she got from the insurer but had the most disgusting attitude. I told her that my claim was submitted August 2019 and my vehicle was repaired and delivered on 30 August 2019. However she gave me claim dates of October 2019 and March 2020 but I cancelled the policy in January 2020. She says she went out of her way for me to get the claim information etc. And that I should rather call Nikkel brokers again and speak to them. If a client was previously insured with you ,surely you should have their claims history on record. This woman is very unprofessional and her service stinks .