I have a Plus account, but it says I can only send 2GBs and my transfers don't resume when I open my laptop.

Some Plus features require a modern browser. If you're not using Google Chrome, Mozilla Firefox (version 6 or later), Safari (version 6 or later), or Internet Explorer (version 10 or later), then you won't be able to send more than 2GB per transfer, and resumable uploads won't work either. We strongly recommend that you upgrade to Google Chrome or Mozilla Firefox to get the most out of your Plus account.