Request Regarding Surrender SBI Fastag

Dear Sir/Madam,
From 19 June 2020, i am calling to sbi fastag customer team,and also mail them, which the demanding from me but we are not getting any result and we are not getting any response through SBI Fastag.
Beyond our comprehension, what are they doing ????
It’s been more than 2 months, They keep getting requests.
But they gave me nothing but despair.
Here my money and time are wasted.
Vehicle Number is PB12AD3617
Please its a very humble requested to you
Kindly solve my issue as soon as possible
If You Need something else then we will provide again.