After being treated well and fairly for years by t...

After being treated well and fairly for years by the BMW garage in Hasselt, I have had very disappointing experiences with this garage in recent months.
On 15 February our car was rejected for a leaking shock absorber. I call the garage, but there is no way to help me get ahead within 14 days. That is nevertheless important, because otherwise I am no longer allowed on the public road ... For the first time in 8 years I go to another garage to have my car repaired. This garage mechanic tells me that the brake pads are almost empty (not the discs) and asks if he should repair them. I don't let them replace this garage (unfortunately), but make an appointment with the official Van Osch Hasselt dealer as soon as the car indicates this.
My wife brings the car to Van Osch Hasselt on Monday 6 May 2019 in the morning. Afterwards, my wife tells me that the windscreen wipers were asked to be replaced. She then replied that they were still good. (I rarely drive the BMW myself)
Sometime in the morning I get a call from a certain Hannelore from Van Osch Hasselt stating that the discs must be replaced and also says that the wipers are worn out (I do not know at that moment what my wife told me when I brought them in). I ask what the price of the repair will be and she lets me know a price somewhere around 600 . I give my approval. When my wife picks up the car in the evening, the bill turns out to be about double.
I call Van Osch Hasselt to tell my story, but because the "Hannelore" is not there, I should call back when she is back in the office. I try again the next day around 3:45 PM, but that is too late. I'll just give it up.
If on 8 May I receive a text message of '3455' or if everything went according to plan, I send the following message: "No. Absolutely not. The invoice was twice as high as stated by telephone. not threaded until now ... "
To this I get the following answer from 3455: "Dear Mr. Vanvelk, our colleague Annelore will contact you tomorrow to clarify the situation. Mvg van Osch Hasselt"
To date, I have not received a single message and I honestly don't expect this anymore .
I now heard from friends who also changed garage that this garage was taken over by a VW dealer ... that makes a lot clear.