bad service

I was involved in an accident on the 24th of December, Mi way got me a courtesy car, on the 3rd of Jan they asked me to return the rented car. I asked for an extension because the damage in the car was not fixed. They told me to extend the car on my account, they wont pay for extension. Sifiso Sigasa- the person who is handling my claim from Miway called on the 7th of January and told me my claim was authorised, the car will be towed to the authorised panel beater and will be fixed within 5 days. I transferred the excess money to the panel beater on the 11th and enquire the status of the car, they told me they have not received a car from Miway but they are authorised to fix the car. I called Sifiso several times with no luck . I called the call centre, they told me Sifiso did not authorised a tow truck to tow the car to the panel beater. The tow truck was authorised on the 12th , the panel beater received the car on the 15th. I have been renting a car for 4 weeks now out of my own pocket. It's been 20 working days since my claim was authorised but I still dont have the car or heard from Sifiso who assured me the car will be fixed in 5 days.