Problems with Ozow. Vanishing payment

Recently purchased items online and used the payment scheme chosen by the retailer - Ozow. Filled in the necessary information and the confirmed the purchase once banking details were added. Ozow cancelled the payment. Did the whole process over again with same result although the bank confirmed that the amount had been paid in full. Sale cancelled by retailer. A few days later, my bank statement showed a payment to the retailer via Ozow for the full amount. Retailer contacted and said that no payment was made to them. Now the question is what Ozow did with the payment as my bank account has been debited for the full amount !! Is this another case of *****ulent accounting as something is amiss !!!