Hello @Chughtai ,
Welcome to the community,
You need to be in the UK and have a physical SIM card and be on contract with EE, then you can do this via the EE App or by logging into your online 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.
