Unknown debit and can't get response from ABSA

I have noticed amounts going off my account for the past number of months and I don't know what it is for and I can't get help from ABSA. My account is with FNB and the details of the debit are as follows:<br> Description One AFF AFRI *** <br> Description Two<br> Transaction Amount 120.00 <br> Service Fee 0.00 <br> Authorisation Date 03 Jan 2016 <br> Effective Date 02 Jan 2016 <br> Post Date 02 Jan 2016<br> Transaction Description:<br> Code 5234 <br> Description Magtape <br> Debit Category Payme <br> Sub-Category Electronic Payment <br> 3. Customer Service Information<br> User Code 3941 <br> User Name Absa Bureau Services 1 User <br> Contact Number (***0)70