BAD BAD BAD SERVICE FROM CALL CENTRE AGENTS

the call centre agent that I spoke to had seriously bad service , so I called in because my statement is not corresponding with my withdrawals and wanted to inquire based on that , i verified for and was put through to her , she kept me on hold for 30 mins , with no assistance and not getting back to me I eventually hung up ,she did not even bother maybe after say 10 mins tell me what was going on , and the request was fairly simple she just had to tell me where the cash cell withdrawal had gone to as I clearly stated that I had not withdrew it, the service I get From fnb is terrible and this is not the first time that such an incident happen , I am highly annoyed at this service and i will be letting Twitter know as well