National Highways Authority Of India [NHAI] — complaint for fastag closing issue

Respected sir,
My vehicle no-ap26td2389, i'm trying to close my fastag account, but its getting active after 15 days of giving fastag closing request, i have raised 3 times fastag closing request from my end in my fastag account portal but its not getting closed, regarding this issue i'm contacted 1033 help line.. But i didn't get any solution from them.. They are raising complaints to close my fastag but still they are not resolved. Some times 1033 helpline guys are disconnecting my call without providing any answers.., i already recharged my fastag wallet with rs.2000 money i need a refund. I want to close my fastag because i sold my vehicle.. Please provide a solution for this sir..

Fastag closing requests given dates,
03/01/2020
17/01/2020
10/02/2020
Complaint dates and complaint numbers,
Complaint no-1537359 on 29th jan 2020
Complaint no-1783693 on 25th feb 2020

Regards
Dorababu g
Mobile - +91-[protected]