Changing Email without serial code
You won’t be able to without the serial, even if you do, you will be in risk of having the account permanently because you are not the original owner.
Your friend must’ve received a code otherwise how did he register the account. I bough the game before the beta and received one.
https://www.guildwars2.com/en/legal/guild-wars-2-content-terms-of-use/
Can I resell, give away, or trade my Guild Wars or Guild Wars 2 account? Can I sell items on my account for real-world money or trade them for items in another game?
No. For further information, please see the Guild Wars User Agreement and Guild Wars 2 User Agreement.
https://www.guildwars2.com/en/legal/guild-wars-2-rules-of-conduct/
You may not buy, sell, transfer or auction (or host or facilitate the ability to allow others to buy, sell, transfer or auction) , or offer to transfer, sell or auction, or buy or accept any offer to transfer, sell or auction, any game Account or game Content, including (without limitation) game characters, character attributes, items, objects, currency, credits or copyrighted material, or any other intellectual property owned or controlled by ArenaNet, Inc., NCsoft, the Service, or our licensors, nor may you encourage or induce any other player to participate in such prohibited transaction(s), except as may be specifically authorized by the Service and by ArenaNet or NCsoft, without first obtaining our express written permission.
How to QQ after being beat. Asatria Legend -Daddelgreis - Sixtymac
(edited by Veeber.3192)
ArenaNet Communications Manager
Resales of accounts are strictly forbidden. We do not charge a monthly fee, and “pass along” or resold accounts are a key cost for us, in that they often go into dispute or have other issues that take time.
We will not be able to help you breach our User Agreement.
Communications Manager
Guild & Fansite Relations; In-Game Events
ArenaNet