Unreliable insurance

I'm not happy with the service that I got from Jet and Hollard insurance. I have an account with Jet and not that account I had a protection plan with hollard. I took the protection plan incase I lost my job so that the account could be settled, but to my surprise I was retrenched this year in May 31 due to covid19 pandemic. I went to Jet store to inform them that I was retrenched and gave them relevant documents. Those documents were scanned and emailed to hollard. Unfortunately my claim was declined reason being I onlu worked 3 months for the new company. It was unfair to me because I opened that account in 2017 and have been paying it well so now that I'm retrenched they can't cover. When I opened that account was working for First Car Rental until this year 31January then I resigned and joined Europcar in February 10 this year until 31 may 2020. Will someone please put some sense into hollard insurance. I even have a funeral plan with them I'm thinking of cancelling it because they are not reliable.