Take a break - timer, reminder 4+

As another reviewer said, it's a good minimalist app, but half of the little functionality it has is behind a paywall, and I personally don't think the extra (somewhat needed) features are worth paying for. However, it's still good enough that I won't bother sinking time into finding a better version.

I downloaded the free version of the app and then within a few days, I had purchased the full app. Annoyingly the app had updated and now I don't have the pro verison any more.
Also it seems to be glitching, it keeps flickering, it is acting as though the count down timer has already happended.
I have deleted the app and reinstalled it but tht hasn't seemed to work.
I just tried to click on the website link in the app store and it it not working nor is the support link.
I actually would like a refund or for the problem to be fixed.

Simple and minimalist app. I love it. The only problem is you can't change when you want to stand app (in my case every two breaks). Even if you are pro user!!!! I would like to keep the golden 20-20-20 and after three or X breaks stand up. Why cant I change that!!!! Please modify that! Meanwhile, 3 stars.