Capitec does not help in unauthorised debit order

I saw a debit order on my Capitec Account on the 25th January 2016 of R89 with a debit charge of R3.20. The reference is GZ Markting 9264GZBD***NAEDO DR ***. I query it with Capitec Bank & they say it's an FNB debit order (contact no is ***) and the call reference to Capitec was ***. I lodged a complaint with FNB concerning the debit order. Sadly, FNB told me that the debit order doesn't come from them & seemingly Capitec didn't investigate properly in Bank server to see where does this debit order came from?<br> I would like Capitec Bank to do the following as all my debit orders which are authorised are with FNB cheque account