Full Beauty Brands Beware! BOGO offer turned into ding on credit report!

So, back in October of 2015 I ordered from Full Beauty online during their buy one get one free sale.  I purchased a $80 jacket for my dad and another jacket for my brother in law.  I was charged $80 on my credit card and waited for my items to come in.  After about a month I became concerned because these were to be Christmas presents.  Finally after about 6 weeks I received my dad's jacket with a note saying that the other jacket was backordered until early December. 

I said okay, as long as I get it by then I'll be fine.  Then I received a postcard in mid-December saying that it was not going to be restocked.  I called and said fine, let me pick something else and they said that was not an option.  I said fine, then refund half my money, and they refused.  I called my credit card company, disputed the charge, and was refunded the money.  Then I started receiving letters saying that I owed them money so I continued to call them explaining the issue and work out a compromise.

  I kept ALL correspondence and date/times of phone calls.  After over a dozen calls with no resolution, I gave up and thought it was over.  Then I get notified by my credit monitoring company that they dinged my credit report in mid/late 2017!  I went from a score of 850 down to 810, I was furious!  I disputed the ding with the credit bureau and after providing all of the proof in the form of records of calls and correspondence my credit score was finally restored.  What a mess!  I will never, EVER, deal with these incompetent fools again.  What a scam -- they draw you in with BOGO then conveniently cancel one of the items so you'll have to pay full price.