Mahindra Edenvale lack of service

Our S4 went for 70 000km service on 13/05/2025. I checked everything when it came back and found that the motor looks like it hasn't been washed for years, the brake fluid cap was still open. A bolt missing on the air filter housing and we've been charged for axle oil replacement but the centre cap on the diff has not been worked on at all. Not just that, from January to May their parts prices have increased by double. Since then I have contacted Anton (workshop manager) but not 1 effort has been made to get back to me. You know, if the manager doesn't make an effort to resolve the problem, imagine how the service is. This is beyond me