Bybit is not the only P2P exchange in the world, you can try others like Binance, Bitget etc. But make sure they are the top-rated ones to avoid a scam. In my experience, they are all good with their P2P service, and their rates are always similar.
In Peer to Peer trading, picking best traders is a safe trading method to go. Scammers are usuallly from new accounts, and they provide "too good to be true" offers so if you are attracted to such offers, you will be scammed.
Best traders P2P with old accounts don't set up "too good to be true" offers because if it is too good for you, it is too bad and unprofitable for them.
You have nothing to lose, instead of wasting your time with Bybit that is not cooperating, or using a third party like your brother for your exchanges.
Why there is nothing to lose?
What you lose is KYC and privacy by using many centralized platforms and do KYC at many platforms.
Why KYC is extremely dangerous and useless.