Mtx Connect Mobile Broadband For Travelers Worldwide Just dial *#100# from your handset at any time If you still can't find the answer contact us online via Web Chat for a quick question, email hello@surecom if it's more complicated, or call us on 0808– If a single top up has not been made during the initial 8 days of SIM activation, a SIM will enter a 60day inactive period during which outgoing calls, SMS and data will be blocked – If a top up has not been made during this 60day period, your number will be recycled and sold to another customer To prevent the blocking or loss of your mobile number, please make sure to always Sure top up check balance