Terms of service changes without notifcation
I just found out that Stack silently changed their terms of service agreement for the Amazon offer and as a result they are no longer crediting me for my Amazon subscription. Not a huge deal but I am wondering if this is this legal? I would think not as everyone would be offering a deal to hook you and once hooked change the agreement without notification and then hide behind they changed it. Is there any regulation someone can point me to that would stop this?