Hello @Y44GRL ,
Welcome to the community,
Yes you do have to have either a sim only or a phone contract with EE to get any accessories, as they are added to your monthly contract and paid that way, this is with all accessories .
You can go to an EE high street store and buy any accessories from there, just not online or by phone, as you must have a contract account.
To contact EE customer service dial 150 from your mobile phone or ring customer service for free using Skype or another phone: +44 800 079 8586 or +44 800 956 6000.
