Where is the cheapest place for PAYG SIM cards?

[chocaholic]

Where is the cheapest place for pay as u go sim cards? Just need a basic sim card and need to know how much the cheapest are and where to buy them?
Cheers

[KirstyJay]

Have you searched for this? There are many threads that have already answered this question :

http://www.tenerifeforum.org/tenerife-forum/search.php?query=PAYG+SIM&exactname=1&titleonly=1&contenttypeid=1