Supplementing.com Supplementing Fake email address, No response from Customer Service Orem Utah

I ordered some supplements from the site supplementing.com.  Upon confirmation of the order, I noticed a mistake. I tried emailing them at contact@supplementing.com, which was the email address on the invoice, and the message kept bouncing back as an invalid email address.  I tried calling but no one ever picked up the phone and I left voice mail messages, none of which got returned.  So now, I'm stuck with an extra bottle of the supplement that I ordered.  I figured it might be ok, if it works.  Plus the invoice stated a 90 day money back guarantee.  So I tried the supplement and of course it didn't work.  I tried 1 full bottle and some out of the second bottle.  After about 5 weeks, I tried calling and emailing every day (by this time, I found an email online for supplementing.com that actually worked).  

Finally after 2 weeks, I get an email back stating I need to call the phone number, the one where there is never an answer, and get a Return Tracking Number.  Another week or so goes by and I'm finally able to get a return tracking number from a correspondence through email after threatening them that I was going to contact my credit card company.

I mail back the unused supplements and then am told that any opened bottle must be returned within 45 days and the 90 day return only applies to unopened bottles.  This is not stated anywhere on the invoice.  The invoice states the following:

So, if you're not 100%         
                               happy with this product,                     
                               Supplementing.com offers a FULL              
                               REFUND within 90 DAYS of PURCHASE! 


This company is a FRAUD.  DO NOT USE THIS SITE.  Customer service is non-existent once you buy the item and they do not stand behind their guarantee.