Business ProfileforAshley Furniture HomeStore Stoneledge

I purchased a bedframe from Ashley Furniture on May 26, 2024 for $299, which is reflected on my invoice. The item was delivered on July 12, 2024 and subsequently I received my first bill on August 1, 2024 from their credit card company services *************** I was charged $805 for this item through the Synchrony credit card, twice as much as was reflected on the invoice for the bedframe. In trying to understand why and take care of this discrepancy, I called the credit card company that sent me to Ashley Furniture company. Long story short, I have spent the last two weeks, with multiple phones calls, and several hours trying to get someone to help with this with this and have had no resolution. Originally, I was told this was a charge error and that my local store manager would contact ************** with the price adjustment. After a week of not hearing back, the price on my credit card not reflecting this change, I tried again to get help from Ashley Furniture. On my second attempt, I was on the phone for over an hour talking to multiple people and finally was told that this was a promotional price error due to an item I subsequently canceled on the invoice. Either way, I never received an invoice reflecting this upcharge nor communicated that the bedframe would cost more money due to me canceling a mattress we did not need. In addition, the company cannot produce an invoice that I signed reflecting this upcharge. I feel like this a bait and switch unethical sales tactic. I have paid the amount I initially agreed to and would like resolution on the remaining $400 that I did not agree to. I know that time is of the essence as I do not want to be charged late fees or have my credit score damaged do to their fraudulent upcharges.