Username Requirements:
1. Usernames are case sensitive
2. Usernames must NOT contain special characters (Examples &@$!%*?#)
Password Requirements:
1. Password length must be in between 12 to 20 characters
2. Password must contain one Upper case letter
3. Password must contain one Lower case letter
4. Password must contain one Number
5. Password must contain one Special Character from : @$!%*?#