Poor Customer Service From FNB (First National Bank)

I've seen many similar reviews and complaints from regarding FNB and this is in reference to the 'no data returned' error. I recently tried setting up the FNB Banking App on my mobile device and unfortunately lost the app, causing me to loose the data from the app. I tried resolving this by going online on my PC and trying to reset both my username and password. Every time I entered the needed information and hit 'continue', it returned a message saying 'no data returned from request'... This has been continuing for around 4 months ow and I still haven't been able to resolve the issue.

Thank You.