However your number is only stored in the database for a few months.
Usually it will be stored for no longer than 6 months and some companies only actually keep phone numbers in their records for about 2 months.
All of these methods are easy ways to get free minutes on chatlines, however you can first of all use your same number on all the different chatline services first before proceeding to these methods.
For example sign up to one chatline service first and use your minutes then simply move on to another chatline.
You can also pick up prepaid sim cards for dirt cheap prices giving you an extra number to use before you go hunting for other methods on how to get free minutes.