Frustrating service from Ford Kokstad

My mother is a pensioner who has to drive 2 hours to get to Ford Kokstad (FK) just to be sent back with a half-functional vehicle! She's very frustrated and fears that her car is going to deteriorate the more she takes it to Ford Kokstad. The problem started in 2018. Her car had a clutch problem, she took it in to get it replaced at Ford Kokstad (FK). After service/fixing, it could not even reach home -it started showing a "Hillstart" related message and stopped working. She towed it to a family we know in Matatiele. FK fetched it from Matatiele and fixed it - they said a *****/bolt/something was loose. They tightened the loose part and it worked. However, ever since then the car showed that message for a long time. It would go on service, the message disappears for a while and reappear. I called FK on the 6th if I'm not mistaken to tell them that it's struggling on the hill and won't start sometimes. She took it in on the 10th, FK said the doesn’t take a computer update and that they will call her with another date. On Wednesday the 15th, it refused to start again. She called FK to tell them that it is not starting to which FK gave her a date of next Thursday the 23rd of December. My mom is an old woman and this up and down is frustrating her to the extend that she (myself included) have lost confidence on the services provided by FK to attend to the car issues. She’s ready to use a backyard mechanic and I wouldn’t want her to do that. This is the very last resolution I’ll try to get her car sorted. I plead with you to get the issue resolved.