I created about 10 accounts on Telegram in a week. I did not engage in any activities other than writing messages to 1-2 group or people. But within 2-3 days, more than half of them became "deleted account". Is this because of the phone numbers I use, or because too many accounts are created on the same device in a short time?
it caused by you have made too many accounts.
You can stop to create a lot of accounts and you can just try to active with your main accounts or telegram will be banning your accounts again .