DON'T USE TEMPEST CAR HIRE THEY REAP OFF

I have hired a car for 31 days at tempest 3 days before lockdown when I tried to return it during level 5 lockdown they were closed in Durban downtown. I tried calling them they told me to keep it until they're open which was 17 days after my my contract expired now they charging me for keeping the car even though I had no choice of returning it, I am handed over to attorneys who are harassing me threatening me to blacklist me I have already paid over 10k for 31 day rental and they demand R2,850.00 more. People be careful of this company I have contacted the so called bosses but no one is assisting me.