Delayed Processing Of Payments

FNB- please can i get some clarity? i purchased items on the 27th March 2021, these transactions were cleared at the time... i am now getting messages that i am in arrears for the purchases made on the 27 March 2021 and the 1 April 2021? which has resulted in incorrect balances shown on my app. If there was a delay in FNB processing payments, why should the client suffer? i will now enter a new month in arrears, due to your incompetence - Please rectify this- I did call your customer service and spoke to Nonhlanhla, no surprise there that the call dropped. I look forward to your response