Not able to place buy order in option, KYC completed

I am not able to place buy order in Option Trading.
Getting error as 16585 Not a valid number.
I checked my KYC status, it is already verified and completed.
Kindly help !!
User id:- 6SARC7

Hey @Kaushik_Pandey,

Welcome to Upstox Community!

We have swiftly processed your segment activation request on our end. It is currently pending at the exchange and is expected to be completed within 24-48 hours. Try placing an order tomorrow or on Friday.

If you face any issues, please reach out to us. Thanks.