Skoda India — Mechatronic part

Hello,
I have Skoda rapid 1.5 automatic.
The car gear shifting was having problem, I went to service centre and it was found there is issue in mechatronic.
Part is completely fine and working properly only gasket has some leakage and I have a question that why a gasket is not available individually.

I got an answer that we have to change complete part which cost around 2 Lacs.
A service class customer cannot effort to pay 2 Lacs.
Waiting for an appropriate response from your end.