You can only install it if you are from Germany or Austria (if you are from another country, you don’t see it in “google play”)
You can search on google “VIMpay - the way to pay apk” download it installed; the problem is with the confirmation by sms, you must have a phone number from Germany or Austria, I tried “SMS receive free” all numbers from Germany and Australia have been used, I tried over 30 numbers from different sites