On XXXX my company gave a check to a tenant as a refund for the deposit that he did when rented the apartment to the company. He cash the check sending a picture to his bank on XXXX and my bank ( Citibank ) paid the check. He sent again the check picture on XXXX and it was paid again by my bank he sent again the same check on XXXX and it was paid again on XXXX was paid again. On XXXX was paid again. On XXXX was paid again. On XXXX he altered the number of the check but only on the top right side, not at the bottom and it was paid again. On XXXX he presented again the check and was paid by the last time. In total the same check of {$950.00} was paid 8 times by the bank. 
I think Citibank fail in their responsibility of checking that : the check number was paid before and the check number was repeated, XXXX times the check number was altered and the check were expired and paid after 6 month of the date in the check. After presenting a complaint in Citibank when i discovered all of this when I was preparing the report to pay taxes al XX/XX/XXXX, they oficially didnt answer up to now but the manager of the office in XXXX say that after 30 days they are nor responsibles of what they did and that they will not refund me my money and wont prosecute to the person that did it. 
