billing

Paved account in April R500 with debit card, transaction showing on my statement however not credited on my Lewis account. Logged quiry with Nonny complains department. 2months to sort out quiry only to be told by Nonny that \she can't find the money I must quiry it with my bank"what do I ask the bank ???. Bank statement shows debit R500 to lewis group....now where is the money??? Problem is outstanding account they repossess. I paved as I should have to lewis ....please find the funds because I won't have my stove taken or pay again . """