Dropbox service

A while ago I invited pond5 members to view a clip shared on my Dropbox account. The demand was probably huge and DB have sent me a warning that I have exceeded my transfer quota (not my storage quota). I could not find on their website what was the actual quota. I moved my files to Google Drive.
DB are advertising their DB Pro service. I have sent them a support request:
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Message: Hello,
What is the bandwidth quota for dropbox pro?
In other words, how many GBs can people download from my account before you terminate my account?
Thanks,
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The answer:
Dropbox Support,
Hi,

Thanks for writing in. While we'd love to answer every question we get, we unfortunately can't respond to your inquiry due to a large volume of support requests. Here are some resources for resolving the most common issues:
(bla bla bla)
We're sorry for the inconvenience,
The Dropbox Team
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This was a response to a sales inquiry!
Would you buy a car from Dropbox?

I would delete my account at Dropbox for such a stupid answer!

Stefan,

You are such a big customer! :D