Your question is a bit unclear...
If the issue is that you have used up your membership bundled landline minutes, your membership still has some of its monthly period left to run and you need to make more landline calls then you will need to buy a landline calls add-on to tide you over until the end of the membership month:
http://www.48months.ie/boiler-plate/add-on-rules
Note that buying a new membership does not terminate an existing one immediately/prematurely but the new one will stack to kick in when the current one has run its full monthly course and expired.
Hope this helps.
