Karvy — Non payment of interest after revalidation by your hyderabad office

I am having 4 bonds of m/s power finance corporation ltd.[protected].
Due to late receipt of interest warrant i have sent it for revalidation (Folio no. Pfa0106367) and it was acknowledged by your hyderabad office over phone on 22, 07.2020 and advised that my interest amount will be paid to me through my a/c within 30 to 45 days. But today 22, 09, 2020 i
Am yet to receive the amount due to me (60 days passed).

Kindly help and advice accordingly.
Thanking you

Yours faithfully
Kaushal kishore
2 b jawahar nagar harpal nagar
Moradabad 22.09.2020