Poor service being a Cheque Card Holder

Good Day . I have such a poor service from FNB investigation team/ Customer Service. I had a query regarding the online purchase and Over 5 months and still today no solution found.I have not received any communication regarding my query as to me having an online purchase , I have not received any communication as for only received a form which is filled and also completed , thus means as a client I feel I am not valued.

Details of reversal of the amount as per email communication for any withdrawals and movement in my account.

FNB :-) R668.88 reserved for purchase @ Knuhm.com from cheq a/c..879840 using card..0519. Avail R4800. 13Nov 04:36

FNB :-) R417.74 reserved for purchase @ Knuhm.com from cheq a/c..879840 using card..0519. Avail R4382. 13Nov 04:37 This company is unknown yet , I requested that to at least DE-activate my account from online purchase no response till today . the only communication received was :Ref No 20181 114_ ********** 26 We are unable to process your dispute. Please resubmit together with the required Communication with Merchant/Service provider. At this point I have indicated that all the above info I saw on my email under debits on my card, No information of the company.