Problems signing in – TOPS BonusPlus® Review

I get an "Oops!" error message every time I try to sign in and technical support "doesn't see an issue"...what? I haven't been able to use the app or the mobile site to date on my iPhone 5s. (Signing in to the regular website seems to work just fine.) Good luck!
Review by Ummwtff on TOPS BonusPlus®.