Out of contract - want to change from Postpaid 4G plan to a SIM only plan
I'm out of contract this week (was 2 yrs 4G $100 per month) and want to change to a SIM only plan (no contract, $20 per month maybe).
I would like to retain my current SG number.
Will I need a new SIM card to do this? I'm currently overseas and roaming indefinitely. So changing SIM cards is not easy as I will not return for some time.
How easy is this to do? Thanks.