Ford Fiesta titanium injector problem

I bought a Ford Fiesta 1.0 titanium 5 door auto the car is two years old but it keeps on burning the injectors and the dealership service manager is blaming shell garage fuel as I use shell garage fuel all the time her excuse is that the fuel is possibly dirty and has paraffin which is damaging the engine injectors and other fuel components.

Today 18 May 2021 at 5pm I had a meeting with the owner of the shell garage Malvern in Queensburgh and he denied everything that was said by the dealership service manager he even said ford kempster umngeni Durban are more than welcome to come and test the fuel in the tanks at their own cost to prove their false theory as the fuel is fully tested before it is sold to the public.

Ford Kempter Durban is failing to recall these vehicles because these vehicles are under performing the engine capacity does not suit it body weight which results in burning injectors from time to time.

If my car was not under warranty this would mean I would have been coughing a lot of money for a car that has a factory fault and the dealership keeps on denying the problem with their car these cars should be recalled.

The owner of the shell garage even called his friend in front of me who had two cars of the same make and had to sell them as they were having the same problem of burning injectors which was costing him +\_ R35 000 to fix the problem while Ford is busy selling these cars to the public.