İs there a recommended oracle service for bsc? From what I can find chain link does the job

chainlink

https://docs.chain.link/?_ga=2.129877839.256405140.1624919241-1438439555.1610452990

Yep cool ty

and they always have no problem

if your client messes up, then its your fault

but using proxy patterns, you can still have the same contract address

and eternal storage

yes

and check why it failes

etherscan and bscan will display revert reason

they have everything documented

https://testnet.bscscan.com/tx/0x1745bd86f93e02392987c26a648c72aa753f457ac10d308da0873bd3724117cc

yes

I made a wrong wallet transaction, I can't retrieve these tokens?

unfortunately not possible

only the new owner can send them back

true, well... there's no way i'll have to redo my code again

thanks