User Profile

I have distributed my App by Custom B2B due to Apple asked me to do (My app is not able to be distributed it from App Store).All done, I generated redeem codes to my users who wanted the application in their devices. The problem comes when I updated my application. No one of my users who redeemed my app has recieved the update. And the time has passed with no results about the update. I have put in contact with Apple support but it seems they just are ignoring me. When I send them an email they take over 1 day to reply me and their responses are something like "Our engeeniers are working on it, we will notify you when we fix the problem". I have also mantained a called with their but is also the same stupid proccess, I tell them my problem and they say the same.Do it happen to you? If you have fixed it or have some clue about what is happening would be awesome.