Anyway, I decided to check the advert today and noticed the "disable sign-up bonus" button was on "yes" this must have been changed to the default setti9ng recently, as it hasn't always been like this, (wouldn't it be nice if we were informed?) its just like the way they used to have the "auto-bid" option on yes unless you changed it and you ended up wasting all kinds on autobids you didn't want.
So, it looks like I wasted $38 on my advert, as not many people sign-up on Tasias, unless they're getting the sign-up bonus, so be warned people, if you upgrade your advert, make sure you choose no for the "disable sign-up credit" button every time you upgrade.