harris poll online Late rewards, extremely difficult to contact, and changed... Internet

Something fishy is going on at this internet-only survey provider.  I don't think they are part of Harris Poll at all, anymore.  Harris Poll is reputable and well-known, and what they are now are screw-ups. 

It used to be that the reward redemptions I received were prompt enough to fall within their stated timeframe, but my latest one has been so late as to be alarming.  First, it's supposed to take 7-10 business days for the redemption to be approved, then another 15 business days to have the reward sent to your e-mail address you log in with and they have on file.  My approval was on February 14, and the reward still has not arrived properly as of today, March 31.

This is the really fishy part.  On March 25, an e-mail was sent to me that was very suspicious, as it was looked like a form letter and without any apology for the lateness.  I had contacted them previously regarding this issue, and found that the response was, in a word:  bogus. 

The e-mail link for receiving the reward, a $10 e-gift card for Walmart, led to an old one that I had previously used the month before without a problem.   Imagine my surprise when I attempted to use the printed e-certificate at the store and had $0 on it.  I had thought that I had somehow printed out the wrong one, but I'm very good at removing used rewards for all of the survey providers I use (at least 10, at last count).  I'm a real veteran at this thing, in other words.

About 30 minutes ago, I sent a rather terse and angry e-mail to them, telling them what 'screw-ups' they are.  I wonder how they will respond?  "Something smells rotten in the state of Denmark" sayeth Hamlet, and I think its name is 'harris poll online'.