System failure from FNB leads to losses

Since Friday, I have been trying to transfer funds from my FNB homeloan account to my cheque account, and since Friday the system is unavailable and my transaction cannot be completed. This has placed me in quite a predicament since I am having construction done and I haven't been able to pay the contractor since Friday! It is competely unacceptable to not have access to MY funds for such an extended period. I contacted FNB this morning and they said they are experiencing problems with people not being able to transfer funds, however that they were working on it. I understand that sometimes there are technical issues, however, this is unforgivable, It has placed me behind schedule and in bad light with someone who is dependant on the payment to continue work. I would like to know how FNB is going to rectify this matter and ensure that the loss of time suffered is recuperated and damaged relationships restored? I am a loyal customer for many years, but FNB, you really dropped the ball on this one.