SSHyundai - Service Complaint

Hi, I'm having a service issue with my mother's Automatic  Santro car KL-**-C-****. First I had given this car in Hyundai showroom Enathu, Adoor, Kerala for clearing oil sealent leak problem and they told it will cost **** and last it came around *****. 
After that my car starts showing pulling problem, a/c problem & smoke coming from engine(video is with me) they came to ma home & told it will go within a week and after a week they took my vehicle and corrected only ac. Then after a week I again reported them with axle problem, pulling problem & car getting off while running. Again given a bill of ****+ and changed something in axle part and not corrected starting & getting off issue.
 Again within * weeks I got issue (not starting tried for **min) when I went for testing and they came and told to put some more petrol I did it and they told to check for a week, within a week again stucked in road and called the manager, he insults me by saying to put petrol and automatic car needs more petrol, (starting problem petrol guage photo & video is with me )and he didn't come and I took the vehicle home by my own way. Next day I took the vehicle to workshop and given for a week they changed all filters, plugs (already changed from outside workshop before but manager is blaming them and shouting at us and it costed around **** but no changes in car and I took the vehicle back. 
Then after a month again I had given the vehicle and told the issues again and I told them to check petrol wires and they changed petrol relay and all costed again **** something(you can check all the service history and cost in your database) and delivered the vehicle without floor matts and was dirty. After that I didn't call them as I can't use this car (km you can check, only *** km driven. Last week I took the vehicle again to that manager and he is shouting at me and my dad and without even checking he told us to do engine work (his last try to grab our money) and I took my vehicle back. They took my vehicle around *times and wasted around ****rs petrol for testing each time and as it is an automatic car mileage will be *-* only.
One manager named Sanooj (other showroom in Pathanamthitta )he was a nize guy he was calling me in between when all this issues happened and todayI have given my vehicle for a last try in other showroom in Pathanamthitta  to find out the issue as I can't even take this vehicle to public area it's not mooving at all.
I'm going to report this manager's worst behaviour with video to social media as I'm fed up with this issue..I don't want to ruin hyundai' s name so I'll not post anything against hyundai only against that manager. It was a nize car before giving to this showroom now even I'm thinking to sell as I can't use and its having lot of issues.So please help me to solve this issue and please give a reply as my car is now in Pathanamthitta hyundai showroom.