Your post was blank @LiamS5320 and the subject line isn't completely clear.
If you want assistance from the Community Forum then you need to explain/describe your question/issue clearly and in detail.
If you're asking how can you get a new plan to start early when you already have an active plan then you can't.
All plans always run their full monthly course and a new one can only be used when the old/current one expires.
If you're looking to do this because you've used up some membership plan bundled allowances then you might need to buy an add-on to continue using the relevant outgoing service.
If it's mobile data that you've used up then you might want to consider switching to the €12.99 plan which comes with unlimited Irish national mobile data.
If that's not your issue then you'll need to clarify what your actual issue is.
If you need to contact 48 support then see the links in my signature below.
