@Sam79
The new sim you have received will be a 5g sim card and is currently blank.
O2 provide this for you to use if you are in a 5g location and wish to use 5g services.
Your curent sim has been updated with your new tariff so it's perfectly OK to use that in your new phone, however, you will not get 5g.
In summary, use your old sim for 4g but do the sim swap if you want (and can get in your araea) 5g.
Please note that the swap process must be started from your old sim.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
