Product: Credit card or prepaid card

I received a letter that Chase denied my dispute for {$290.00} for a purchase shed even though I've sent evidence the seller was fradulent and never sent a shed. My issues with Chase are the following : 1 ) Within minutes of placing the order through XXXX site I noticed the purchase was fradulent and called to stop payment with Chase. They advised I had to wait for 24-48hrs for  payment to post to dispute. I waited and immediately sent in documentation to dispute the charge. 

2 ) My second issue is that clearly this purchase was a scam and I sent ample documentation to prove Seller never shipped the item because I filed the complaint with XXXX and they've advised this was an inaccurate tracking number provided and it was not meant for me but for vet supplies. My request is for my dispute to continue being investigated by Management and someone with the authority to actually review the information and provide me evidence that the Seller actually mailed what was delivered. 

Details of the scam are summarized below : * I purchased a shed on XX/XX/XXXX for {$290.00} on website XXXX ( this website has since been taken down- I luckily took a screenshot when it was up ) This  was a 4 X6 outside shed that weighed over 100lbs. I  repurchased this shed via amazon and sent in evidence of weight to show the shipment weight. 

* The purchase was made through XXXX site, while I thought it was odd that they didn't have a direct link I trusted XXXX and Chase as my credit card w/purchase protection. I did not receive shipping details other than a receipt from XXXX  which is attached. I immediately contacted Chase to stop payment and was told I needed to wait for payment to post. I did then filed a dispute. 

* After I've complaint to Chase and XXXX, I received a notification via XXXX  on XX/XX/XXXX with a tracking number. This tracking number when looked up stated that s package that weighed 5lbs and 1lbs were sent to an unknown address in XXXX ( see attachments ) on  XX/XX/XXXX literally hours after I had placed an order. The package was sent to an XXXX XXXX XXXX facility and not my home address located at XXXX XXXX XXXX XXXX, CA XXXX. This is proof number one that the XXXX XXXX XXXX is running a scam. A 4 X6 XXXX XXXX shed can not weigh 5lbs or 1lbs. As stated above, I repurchased this exact shed at it weighed over 100lbs via amazon on XX/XX/XXXX. I've attached evidence of that. Given the first response from XXXX XXXX, I submitted proof from XXXX the shipment was sent to XXXX not my address and only weighed the 5lbs. I'm requesting the same evidence from XXXX and to stop payment until this is investigated by Management. Clearly, he did not send a shed to my address and has no evidence he did and if some was provided Chase has not sent it to me. 

* I've sent in pages of evidence to show it was a scam and to have this person investigated. XXXX XXXX was not responsive to emails when you look at their site when it was live, it contained XXXX addresses. Regardless, I submitted evidence to Chase to have my case reviewed and I'm disappointed with the little amount of investigation this was spent by the claims agent. Thus, I'm escalating for Management to review my request and evidence I provided. I've made many purchases through Chase and my history shows that I never make a dispute. I expect great customer service in reviewing my dispute.