If you want a replacement SIM then see here:
If you mean a SIM for another user then you/they should follow the same steps that you used to set yourself up on 48 in the beginning:
They'll need their own email address, account, login etc.
48 don't sell phones.
They do partner with Refurbed who sell refurbished second hand phones if that's of any use:
If you need to contact 48 support about any of this then see the link in my signature below or email them at support@48months.zendesk.com
