Southwest cc 2 free flights ?

[hsmamato2]

I saw an ad - get a SW cc,make one purchase, get 2 free RT flights.....anyone know if the 'one purchase' has to from SWA? any minimum amount?
is there any drawback to an offer like this?

 

[dudspizza]

I saw an ad - get a SW cc,make one purchase, get 2 free RT flights.....anyone know if the 'one purchase' has to from SWA? any minimum amount?
is there any drawback to an offer like this?

There is a lengthy discussion about this topic here http://www.disboards.com/showthread.php?t=2650159