If it is the shield that your gang had you can simply go back and get it. But if it was the other gangs shield you need to get someone to get you it.
Yes. You just simply go back to where you found the shield and get it.
There is no way to cheat on Runescape, may people have tried and lost runescape accounts over it.
I will list all types of crests (logos) that you can get in-game, and how to obtain them:Arrav - Complete Shield Of Arrav Quest.Asgarnia - There is no requirements.Dorgeshuun - Complete The Lost Tribe Quest.Dragon - Complete Dragon Slayer Quest.Fairy - Complete The Lost City Quest.Guthix - Prayer level = 70+.H.A.M - There is no requirements.Horse - Toy Horsey in inventory, they can be bought from Diango (Draynor Village).Jogre - There is no requirements.Kandarin - There is no requirements.Misthalin - There is no requirements.Money - This one costs 500,000 Coins.Saradomin - Prayer Level = 70+.Skulled - By skulled whilst choosing a crest, you get skulled on pvp world or the abyss).Varrock - There is no requirements.Zamorak - Prayer Level = 70+.
No.
read link below
go on runescape wiki
to get it back you cant
noob you buy it
Zanaris after completing the "Lost City" quest
i go jagex ltd
you can buy another one for 10gp at the general store
Go back to the start, and try again.