Boyner iOS App and Website Do Not Allow Me to Select Hopi Discounts Online

I can't select Hopi discounts in the "Use Hopi" step on Boyner's iOS app and website. The option for "I don't want to use a campaign" is already checked by default, and there seems to be no way to uncheck or deactivate it. I attempted to click on the discounts to choose them, but they won’t respond. This problem affects my shopping experience and stops me from enjoying the Hopi discounts I was looking forward to using. I was not expecting to face this issue, and it's quite annoying to exert additional effort to use a feature that should function smoothly. I would greatly appreciate prompt help in addressing this matter so I can finalize my purchase without any additional hassle.