The problem with mining investments is that you don't know for sure that they are going to give you what they mine. Also, you don't know if you are actually renting anything at all unless you can have live video feeds of the mining machines in action with your details attached to it
Actually, you can buy a script that automatically allocates hashes for users, depending on the mining has rates plan that they've purchased and they don't have to run mining rigs for this , it's like more of an hyip or ponzi scheme, unless they show actual videos and they are being monitored
