So as I kept going on and on unsubscribing to each one, I found a few e-mails that doesn't have the unsubscribe link. I tried to look around the Internet and see if there are any reviews for the website responsible of sending me these spam e-mails. Some has bad reviews and while others, none at all. So to those spam e-mails, I sent an e-mail to them and asking them to unsubscribe me from their e-mail list as I wish to not receive anymore "notices" or "newsletters" from them. Few days later, there was no reply to that plea and yet I still receive more spam offering me random products.
So I was left with one resort. I hacked them. By simply finding out their IP address, check for open ports, sent them a detonator virus and I never heard from them again. I bet there are plenty of others who would do the same thing if they keep getting spam e-mails. So for this case, I highly recommend and warn everyone for their own good, to never buy e-mail list from anyone. Because a simple e-mail address is all it takes for one hacker to get nasty.
You have been warned.