Vespa — very poor service department

Website:

savirromotor.com

I gave my vespa elegante to savirro motor for servicing air leakage from the rear wheel. Later, they informed me that my vehicle was not used daily so, the air may leak. So, i told them that if a vehicle was not used daily air will leak definitely but, only few points may leak. But, my scooter's rear wheel air was leaking around 12-15 points. Later, they told me to leave my vehicle for servicing and they told me that there was some problem with the setting of the wheel and informed me that they cleared that issue. Still it wasn't rectified. Again, i went to savirro motor and asked to rectify the issue, this time they told me that they would fill air up to 40 point and they wanted me to leave the vehicle in their service centre and informed me to come after 4 days and check if the air is still leaking so much. Later, when i went there after 4 days, air has dropped to 24. 16 point has leaked in 4 days. This time they told me that there is some problem in the valve stem of the wheel, but i had already checked it earlier and told them that that's not the issue, but they didn't accept it. They argued with me and told me that that was the only issue. Later, i took my vehicle and checked in xl tyres and they confirmed that there was an issue with the rim of the wheel. Then, i went to savirro motor and showed them the video of air leakage and this time they told that they would change the tyre and see. Main problem is that why couldn't they find the problem in the first place and they didn't even listen to the facts produced by the customer and still argued and took so much of time. They couldn't even rectify the issue till now and they spotted the issue only when i showed them a video of air leakage from my scooter's rear wheel. Why couldn't they spot the issue before. Very poor service work.
All these issues have been told to vinoth (Service manager of vespa), but, he only argued with me that the issue i've told them was not the real issue.
Very very poor work done by the service department.
Vehicle details:
Model: vespa vxl 150 elegante
Colour: pearl white
Chasis no: met0000hawd013789
Engine no: m440m3033168
Rto reg no: tn-14-q-4545

Customer details:
Name: ramesh babu r
Mail id: [protected]@gmail.com

Showroom details:
Savirro motor
No.9, chrompet - thoraipakkam 200 ft radial road,
Kovilambakam, chennai - 600117