Mozillion operates mozillion.com as a UK mobile provider and phone marketplace. Its website sells SIM only plans, data only SIMs, pay as you go SIMs, travel eSIMs, new phones, certified refurbished phones and phone contracts. The site also allows customers to sell eligible phones through its marketplace process. Official terms identify Mozillion Limited as the trading company, registered in England and Wales with company number 11864919 and a registered office at 15 West Street, Brighton, England, BN1 2RL.

For UK shoppers comparing mobile specialists, Mozillion is most relevant for SIM plans, eSIMs, new phones, refurbished phones and phone selling options. Its support pages publish a contact form, help email, phone number, dashboard tools, returns guidance and complaints process.