For all prepaid customers another possibility to recharge their account or the account of third parties.

All you have to do is send from your mobile phone an SMS to 141 that contain the 12 digits code of the recharge card.
Moreover you may recharge the account of another PLUS prepaid number by sending with SMS to 141 the phone number you wish to recharge as well as the 12 digits code of the recharge card (e.g. 066xxxxxxx 123456789012)