Number called me and hung up within 2 rings rang straight back and no answer.. Who is it..??

i got missed call from this number what when i tried to call on this number they didn't pick up

http://upskillonline.com.au/contact-usOffering some online course, no idea how they've got a hold of my number. I'm calling it spam

Got a call from this lady who asked if I received some text and I said no and then she said I should have and asked if I want to do some stupid course, no idea wtf the b***h called for but weird as

The calls from this number are from thailadylovelinks.com's information sign up. A friend got an email after signing up for a meet me in bankok thing. So he signed up for it and started getting all sorts of wierd calls and msgs. Their sending out numbers that people use to sign up.

i think she is from some course on line agency