Lack of Bikes Uptown

I started using citibike a year ago when they finally started putting stations in upper Manhattan. I’ve started relying on it a lot whenever I need to run errands in the Bronx, Harlem and the UWS. Over the last couple of months it seems as if Citibike has stopped redistributing bikes up here. It’s become increasingly hard to find a station that has available bikes and when you do some th I have wrong and you can’t check out a bike. I just walked out of my way to 179th and Wadsworth to get a bike and despite there being about ten bikes there, I got an error message every time I tried to take a bike out. 
Also the new QR code’s work only like 75% of the time.