Green Man Gaming Really Bad Service

I purchased the steam key for Magicka: Collection at Green Man because it was on sale.
A little cheaper than it was on sale for in the Steam store a couple days earlier.

But when I got the email for Green Man I noticed it did not list all the DLCs. I checked the Green Man site and they say only 8 items included, not 22 items. So I immediately contacted Green Man and asked if I am missing something, that their site does not list all of what is suppose to be included in the "Collection". Jacob responded with, go buy the one from Steam. So I asked for a refund.
Got no response in 3 days so I created another ticket.

I explained that their Magicka: Collection is named the same as the official Magicka:Collection but does not include all the DLCs which is misleading and causes confusion . Since I already own Magicka and only want the DLCs and did not use the key, please refund me.

A response from Holly was "I am sorry to hear that you want a refund on this product but unfortunately I am unable to give you a refund…". Contacted a couple more times, but it's like talking to an automated phone service. Really bad service.

So I would not trust this company, you may not get what you want and they will not help you.