It is your browser. Could not access from Safari but can access from internet explorer on PC

I have had no problem logging in to site from my Mac ....my iPad/iPhone can access as well. The site, however, does not work properly...I have been unable to reconcile my acct for well over a week. As soon as you log out of your acct what you previously reconciled reverts back to "C" (cleared). I spoke ith customer service who was no help at all. They indicated they were aware of the problem and anticipate a fix in "a few weeks". I sent an email hoping for a better response and received a form letter in return. Frustrated? Hell yes! And they have the audacity to say its not their problem??? People, we've all been had!