Did you try writing to them?I am selling some software service to a very niche audience, therefore, reddit is most appropriate bet. Already spent some good fortune on Meta Ads but no good result.
No offence, but I don't think purpose etc is point of matter here, the point to interest is a big player like Reddit Ads do not want Indian advertisers or RBI has put such rules which are not compatible global merchant protocols.
I have seen ads catering Indian audience.
Zoho made aggressive ad campaign last year for there vast niche.