Reserve Bank Of India [RBI] — rejection of sbns application

Good afternoon sir
I was submit sbns at rbi mumbai 08/03/2017 my application no n. C.85 then i try many time for update but no replay from rbi office, so on 15th may i call and they told me that my application is reject due to custom certificate and they also told me to mail on [protected]@rbi.org.in, so i mail it this email id, but so long time they didn't replay i remail it again on 05/06/2018 but till today they didn't replay me, let me clear you that this sbns note was at my home, surat-gujarat-india, and i was at africa during demonetization so how can i bring custom certificate, now what should i do?
Please help me out of this
Thank you