Hello @Whimsey ,
Welcome to the community,
Who has asked you for your sim password? This should only be necessary, when updating your device or rebooting your device, as this is a safeguard, It might help to give us more information in order to help you.
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.
