Can i sign up for same offer on different sites?

If i sign up for say stamps.com on one site then go to give someone else a referal and sign up for stamps.com again. Is this allowed?

How about if i sign up theyt get credit and i cancel. Sign up at another site for same offer since previously the guy got credit and i already canceled

you can only do an offer once. if you do it more than once you will be put on hold

this has been answered before, use the search function

yeah, I agree with Aguy, don't mess with the system you will get caught.

all trial offers are based on being a 1st time customer, which is why you are offered a free trial or a discounted trial.

you cant be a 1st time customer more than once so you're not eligible after your 1st time.