Sᴛᴇᴘ 1: Write down your blockers phone number if you have the contact that blocked you saved on your phone write it down somewhere and delete it from your phone step.
2: Back up your chats I believe you already know how to back up your WhatsApp chat (ʙoth messages and media file well, if you don’t then here is a quick guide to creating a google drive backup white check mark open Whatsapp go to menu button settings that’s chat back up white check mark tap bᴀᴄᴋ up to gᴏᴏgle drive and set up the backup frequency to your liking white check mar yᴏᴜ will be promoted to select a Google account that you will back up your chat history to. If you do not have a google account, tap add an account when prompted. Please remember the google account you are using the backup white check mar tap back up to choose the network you wish to use for backup. Please note that backing up over cellular may result in additional data charges step
3: Delete your whatsapp account: gᴏ to account settings on your whatsapp and delete your account. By deleting your number it means you are no longer active on Whatsapp. So technically, ʏou cannot be blocked by someone not seen on whatsapp. Someone who is not on Whatsapp. Whoever blocks you will never have you on the blocked list.
4: Clear whatsapp data: now go to your phone settings > app>whatsapp and clear the data.
5: Reactivate, open your whatsapp and register your number on the Whatsapp platform again.
6: After verifying your phone number, Restore your backup chat: Make sure the same google account that’s was used to perform the back up has been added to your phone.
7. Finally, you are unblocked.!