In XXXX of 2015 I had a large charge of {$2400.00}. from a vendor who I contacted to get a refund in XXXX. Since the charge was on my XXXX Barclaycard statement, I contacted their dispute department regarding this charge which they said do not pay until dispute is resolved.XXXX statement reflected no credit. Then XXXX received a letter from Barclaycard 's dispute dept that {$2400.00}. credit was issued twice therefore I owe them this money. My previous bill was {$520.00}. now amount due by XXXX of XXXX is {$4600.00}. My complaint is I think Barclays mishandled the funds in order to make a very large amount due so they could collect 25 % interest which I believe is grossly unfair when charges should have just cancelled out. Now they make it impossible for me to pay this huge amount in full and they gouge me for XXXX & interest on the balance. 
