Tirumala Tirupati Devasthanams — Room cancellation Refund Request

Dear Sir,
I have registered my complained many time with my mail is-sanjay.[protected]@gmail.com at [protected]@tirumala.org.
My booking no is-IA[protected], Invoice No-IAST[protected],
DATE-02.09.2021 Cancellation date-03.09.2021,
but there are no positive response plz check an refund my amount asap.