The brake fluid replacement was required during the 135 000km service. Was charged R139.81 for the brake fluid.
After the service I noted that the colour of the brake fluid in the reservoir tank was dark green in colour. Sent a photo to the dealership. Their response was that the brake fluid was changed.

After deliberations I was requested to bring the car into the dealership. The technician opened the brake fluid reservoir tank and informed me it needs to be replaced. Drove the vehicle into the workshop. I had my dashcam in the vehicle. Vehicle was in the workshop for 11 minutes.
The brake fluid in the reservoir tank was now clear. Examined the brake bleed nipples. All were still covered in grit. This raised suspicions. They just siphoned the fluid from the reservoir and replaced.
I did the flush via the bleeding nipples and as expected, the fluid was green.
Also, I noted that the oil filter reflects that it was manufactured in 2023. They are normally a year old. Not sure if this was replaced with a new one or a used filter from another vehicle was wiped clean and fitted to my vehicle. When I have a gap, I am going to replace the filter and cut open the existing filter. I might see some signs of a used filter.