Now that we've covered why you might want to block someone, let's move on to the process of unblocking them. Here are the steps to follow:
Check if you also blocked them on your phone’s native SMS/call block list. Also, make sure you have a stable internet connection. If all else fails, ask them to delete your number from their phone and re-add it (rare contact sync glitches happen). how to unblock someone on whatsapp