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Very first thing you should do with any cryptocurrency wallet is to backup your seed words. If you have made attestation or bought private assets like blackbytes then you should also do regular full backups (seed words don't recover that data).

If you didn't write down seed words or didn't do the full backup then there is not much you can do to recover lost Byteball wallet.

so that mean i lost my old account but now i created new one. on my @imransoory id. by using steem connect. i made two referrals from my post but still i am not getting the referral bonus. please check sir .

How did you do the referrals, by sending the link to them or by sending 50 000 Bytes? Did you checked on Explorer before sending that you were the first one to send them Bytes?

oh sorry and thank you for open my eyes. now i check the explorer and then send. actually i am providing download link and 60,000 byets too.

It is important that you are the first to send them the Bytes (they don't need more than 50 000 Bytes), referral link is just a fallback when the bot can't find any already attested user to give the referral reward.

ok thank you for your reply

sir i have one more question . when this airdorip will expire?