Avis Secunda incompetence

On the 13th of November 2020 I rented out a car at avis Secunda branch and returned it on the 27th of November 2020 and I was told that I will be refunded my fuel deposit after 6 days. The six days have passed and I have not received my money. Your service is very poor, I called this morning and I spoke to Themba he said he will submit my refund documents because he's not sure if it was sent or not. Rental agreement no ***