Rip-off and Misleading services provided by French Tech Auto

I submitted my vehicle to French Tech Auto, which is an authorised Dotsure workshop, for timing chain repairs. The vehicle was with them for almost 3 weeks before they even provided a quote, which caused a lot of inconvenience. I distinctly explained my warranty plan and additional costs and an agreement was made before I departed the worskshop. I had other options.

As soon as the claim was approved by Dotsure the workshop called to ask me about other vehicle issues they failed to diagnose when forwarding the first quote, those issues never existed when I left the vehicle. Anyway after After the insurer approved the repair as per the initial quote , I was then told I need to pay an additional R5,500, despite the fact that the original quotation had already been approved and settled by Dotsure. This feels unfair and not transparent, as I was never told about extra costs upfront.

I expect workshops to provide accurate and transparent quotations the first time around, so customers know exactly what to expect. This after-the-fact change has left me feeling misled and taken advantage of.