Password Reset on Online Banking

Have been experiencing constant password issues on my mobile & laptop. The system decides to automatically reject my valid password without real reason for incorrectly inputs and this happens every Two Months & have run out of my secure password options. This results in me not able to do my transactions at my conviniance & calling the call center they report unknown security risks which are on their system setup... please help me out as this issue was escalated on call Rj ********** 681.. this issue is seriously forcing me to go find another bank that will give me peace of mind to use my money at my conviniance not be held up with complications of FNB systems issues that cost a high rate