Discover Credit Card Complaint

Discover Credit card department,

Transaction issue Pennsylvania

I am very disappointed the way Discover handled my dispute. They sent me a letter dated -/-/2016 stating that regarding my charge of $5100.00 from - a company that contacted me by an unsolicited telemarketing phone call, promising online business related. They never provided me the services that I paid for. They scammed me out of $5100.00. So Discover stated at the letter that they have no record of me disputing this charge in the past. But as as of -/-/2016, they were initiating a dispute investigation and sent me a notification informing me of the temporary credit to my account for the disputed amount of $5100.00 and notified the merchant of this situation. They explained that if the merchant provides documentation that shows the charge is valid, they will remove the temporary credit and notify me with a copy of the information provided from the merchant and that this process typically takes less than sixty days. Then I received my statement from -/-/- till close date -/-/2016 and they put the $5100.00 charge back in there. I do n't understand why? Less than a month after they started the dispute and no letter explaining why they removed the temporary credit or if the merchant replied or not. They did not give me the chance. So I would like them to reopen the investigation since nothing was done and they did not comply with the disputing steps.