Very Bad on line service

On the 25th March 2020, I was supposed to receive a payment form my business associates, who is not the 1st time paying me and using the an FNB account. the money until today has not been received, my business associate sent me a proof of payment I went to the bank on the 26th March 2020 to show them the proof of payment they went through my business account and told me that there was nothing wrong with my account but I must tell the person who paid the account to call online banking which I did and he was told it will appear until today nothing is appearing, This is very bad and poor service especially for small black female own company as I am now seen as very unprofessionally and not caring for others cause I had to make payment, and I am definitely sure that my business associates has made the payment and also was following up with FNB. Now I am suffering financial loss, stress related and trust from people that works for me as I am unable to pay them. Now I am even thinking of moving all my accounts from FNB cause what if the same thing happen to me while trying to use on line to make payments and it takes days to appear.