Welcome to the Community Forum and thanks for your post. I'm sorry to hear that you are experiencing a problem with your Recent Usage access on your online account. Please see the following post: Unable to access Recent Usage via Your Account online. Any future updates will be posted here, so make sure to check back.
In the meantime, you can download the Virgin Mobile My Account app from your app store to keep track of your overall balance. We apologise for the inconvenience this causes.