you should look for to assure that you are not getting into a scam program. Firstly, when selecting any online entertainment program make sure that the company is giving a guarantee or not. Websites which are not offering guarantee are more likely not confident in their program, so be very cautious.
Secondly, if any online entertainment program is giving guarantee whether it be 30 days or 60 days, may not always honour the guarantee, so always look at their payment processor. The reason is that the company that do not use a reputable third party processor will have no guidelines or agreement terms that they will have to follow. You will then be at their mercy. Companies that uses a payprocessor such as paypal, plimus, 2co as an example will have to follow a strict code of ethics as in the terms of agreement of these payment processors. So, if any of the online entertainment program that does not follow the terms of agreement set by their pay processor can face cancellation and suspension of their accounts. So, such company would get into trouble if they do not follow their terms of agreement set by their pay processor.
So, choosing a good company that offers a guarantee and also uses a third party pay processor such as paypal are the two keys to assure you that you will not get scammed by these online entertainment programs.