Abreeze Technology cannot uninstall the application or remove any apps for you, you must do it yourself through the Clover app market. Please follow the instructions here.
If the application has a free trial, you will not be charged if you uninstall before the trial ends. If you surpass the trail period of a subscription-based app, you will be billed a pro-rated amount for the portion of the month that the app was still installed. After that, there are no further charges.