text messaging issues

I received a text message yesterday from someone. However she said she never sent that message to me, she sent a completely

different text message. What is going on? Can someone else be sending a message through her phone? Has anyone heard

of this happening before?

via Forums de téléphone cellulaire (en français) http://cellphoneforums.net/fr/general-cell-phone-forum/t365920-text-messaging-issues.html