Questionable listings for SimpliSafe systems?

[mari5h]

There are several listings for SimpliSafe home security systems by sellers with 0 feedback. All are aproximately the same price of $180. This price is significantly lower than the usual price for these systems. I am interested in purchasing a system but do not want to be scammed. Is there any way I can verify if these listings are legitimate and the seller will send the item? 

Thanks for any sugestions.

[savesome2]

Bingo !!! I purchased a system and 2 investigators showed up at my house. Little to say that I no longer have the system (evidence) and I am out the money.

[patriciaduff22]

My credit card was hacked and four "Simplisafe" charges for about $400 were all fraudulent purchases on my card. 

[mainfirets]

Your credit card was hacked, I thing you will call police or banker.