Volkswagen India — Cheating by VW Vellore

I own a VW Jetta. I provided my car for a periodic servicing yesterday evening. The car was collected by a driver from VW Vellore service centre. However, the following issues are glaring:
1. There was no documentation procedure carried out on handing over the car. So, technically there is no proof that the car was taken out of my consent.
2. I was assured that the car would be delivered post servicing today evening. However, in the evening I got a call stating that the car would be delivered by only tomorrow.
3. Additionally, I was told that the timing belt was not available and it would take atleast one week for it to arrive post placing an order.
I have the following observations:
1. How was an appointment given in the first place if the availability of the components not assured? Moreover, if the service centre was aware of lack of component in the morning itself, why did they assure delivery of the car in the evening. This is a clear case of cheating.
2. In the usual procedure, when a car is collected for servicing a form is filled by the service centre rep, a copy of which is handed over to the customer which has details such as odometer reading, fuel level, presence/ absence of spare wheel/ other relevant kit etc. How is such a major thing missing is this case? Additionally, I haven’t received a mail or sms regarding receipt of the car for service yet. This speaks very poorly of a authorised VW service centre.
To see so many glaring issues happen all in the same instance seriously brings doubts to my mind regarding Quality Assurance of VW. After this pathetic experience I would think twice before recommending a VW to anyone, leave alone get a servicing done at a authorised service centre.