Hi
This subject often pop's up on the forum.
There is a difference between ordering a replacement sim & a New sim.
I am assuming you ordered a replacement sim...
The replacement sim is really only applicable for lost sim/stolen handset.
In all other case's a New Sim is required.
In your case it would be correct to order a New free sim while not logged in to the 48 site.
See link below for full accurate detail's:
http://community.48months.ie/t5/Most-Popular-Questions-Knowledge/You-need-a-new-SIM/ta-p/8487When you receive new sim - log a ticket for support before putting sim into handset - have the detail's of sim that are required to hand and add this when logging said ticket - as suggested in guide, support will then add the new 48 sim to your account.
🙂