Browser verification for FNB Online Banking is not customer friendly

I use FNB's digital platforms, specifically mobile banking and online banking. For FNB's online banking experience to secure, FNB verifies customer browsers to provide digital security for its customers (happy so far). However, after many interactions with FNB, I now understand that the way FNB implements this security feature is such that its systems "unverifies" a customer's browser whenever, for instance, a customer increases his or her bandwidth with their ISP. There is no way to get the bank's staff to verify the browser, meaning that the customer now cannot get the most out of FNB's online banking system. Very frustrating and a very customer unfriendly experience.