app does not work on android

it is now a month that I have not been able to log into the android app on my phone and that I have reported it to no avail. The problem is not my phone as i have uninstalled and reinstalled the app and even installed it on various android devices and all do the same. The app crashes when you log in which in turn does not allow me to see my vitality points, use my rewards or get vouchers for my discovery miles. There is some known bug on android devices when customers have discovery life cover was what the call centre agent told me. I find it very bad that your developpers can not even fix this in a reasonable time as well as test stuff before making it available for the users to download. We pay so much money every month for a service we simply do not get and we just have to accept it because no one seems to be able to give you a straight answer as to when the issue will be resolved. I think it is time to start taking my business somewhere else where people still think the client is important.