Hi @Samimahmed18
Just to clarify you haven't used the SIM in 5 years or you have used the SIM for the last 5 years.
Are you in the UK.
Thanks
To contact EE Customer Services dial 150 From your EE mobile or 0800 956 6000 from any other phone. You can call Freephone +44 800 079 8586 on Skype
EE standard opening hours are Monday to Friday, 8am to 9pm - Saturday and Sunday, 8am to 8pm.