I did this. Managed to remember to cancel all the daft subscriptions and filled in all of the cogs. However, a couple stayed grey, which on closer inspection, requires a screen shot of your registration with said daft subscriptions. They didn't tell you this during sign up. Apparently I've banked £130 but I can't cash out due to my lack of proof I subscribed. Not a good show.I too tried this. I worked out that this was likely to cost me money rather than make money right from the get-go. I never did any "offers", never went back and have no intention of doing so. Clever, but high maintenance (remembering to cancel all those useless subscriptions - if you can; some require postal notification of cancellation, read the very small print) and bordering on the scammy side.
Not a chance.