No, what will happen is your account will expire after 6 months of non-use (you are in Turkey so won't be using their 0845 number). All you do is go to their site, re-activate your account - as a non-subscription pay as you go one - and check your email using the webmail facility.
The next stage is to get an email account like Yahoo that can check it, download it etc. and set it that when you reply, your email address automatically switches to Yahoo, so if the reply you send is replied to again (by the original sender) it comes straight to your Yahoo account, not the freeserve account the sent the original one to.
That does make sense, possibly.
Scunner