Product: Credit card or prepaid card

Someone was able to access my XXXX account and made fraudulent transactions on XXXX of my credit cards that XXXX had on file. On XX/XX/XXXX, I noticed I was getting numerous emails from XXXX thanking me for my XXXX purchases. I went to my XXXX account and didnt see anything new in my orders information, so I thought it must be fraudulent emails trying to get my account information. But then I decided to look on my chase card account just to be certain and noticed some XXXX purchases from the day before that I did not make. So I quickly got back on my XXXX account and changed my password and deleted my credit cards from my XXXX account. I then went into my account information on XXXX and noticed XXXX different transactions I did not make and that had fail to appear on my order summary. I believe XXXX of them were said to be from the exact same XXXX third party seller. XXXX was a purchase for XXXX pairs of the same earring, XXXX tactical lights, XXXX sounds bars, XXXX pairs of night eye mask. And more. XXXX was for a coffee filter that I did end up receiving, but it was the first purchase made and I believe purchased from a different store. XXXX of these transactions were made on my chase card totaling a little over {$300.00}. Then my chase card stop accepting the charges, so another XXXX. + dollars went into another card. The other credit card company had since removed those charges. I called XXXX and both credit cards companies on the XX/XX/XXXX the day I noticed the charges. At first Chase removed the charges when I disputed them, but then added back onto my account saying they investigated it and because I shop at XXXX all the time they deemed them valid charges. I again called Chase and explained the circumstances. They agreed to again examine the dispute and had me email them additional information and screenshots I had taken of the fraudulent purchases as they appeared on my XXXX account. I emailed the information to their fraud department, I then received a letter to my chase account saying they again deemed the charges to be valid because, I benefited from the transactions. I emailed the fraud department again on XX/XX/XXXX saying I never ordered or received any of these items how did I benefit from these transactions. I asked why would I order Numerous quantities of the same item, why would I make numerous purchase from the same third party store. Why would I call them on the XXXX, the day most of the charges appeared, to tell them I didnt make them. I asked why couldnt they look up this third party XXXX seller and see that they are now non existent, and why couldnt they call XXXX who would confirm these are fraudulent charges. Chase has yet to reply and still hasnt removed any of the charges. I again sent Chase screenshots I had taken at the time of the transactions showing items with the numerous quantities and showing they were all said to be purchased from the exact same XXXX seller. Also sent a screenshot of an email dated the XX/XX/XXXX from XXXX saying they believe fraudulent activity has happened on my account, But no reply and Chase still hasnt remove them from my account. XXXX on XX/XX/XXXX said on they should be crediting my account soon. 
Here are the dates and charges and some of the things I know from screenshots- but since XXXX has removed them from my account I dont everything that was said to be purchased besides the amounts Chase {$7.00} XX/XX/XXXX - coffee filler {$21.00} XX/XX/XXXX - a small rug {$86.00} XX/XX/XXXX XXXX tactical flashlight {$100.00} XX/XX/XXXX XXXX sets of earrings {$75.00} XX/XX/XXXX? 
Then my chase card refused additional purchases, so these when on my other card. 
{$200.00} XX/XX/XXXX set of eye sleep mask {$320.00} XX/XX/XXXX? numerous bike lights {$300.00} XX/XX/XXXX XXXX sound bars It would have been worse if I had not of noticed the emails coming from XXXX on XX/XX/XXXX, and I took the action to change my XXXX password and remove my credit cards from the account.