"http://www.textapp.net/webservice/httpservice.aspx _ ?method=sendsms&returncsvstring=false _ &externallogin=mylogin&password=mypassword _ &clientbillingreference=myclientbillingreference _ &clientmessagereference=myclientmessagereference _ &originator=mynumber&destinations=%2b447912345678 _ &body=hello%20world&validity=72&charactersetid=2 _ &replymethodid=4&replydata=&statusnotificationurl="I want to put a pound sign into the body of the text, (eg &body=the cost will be £50.00) but it doesn't seem to work?