No. Downloading a file from Vecteezy and reselling it as your own is redistribution, which is not allowed.
While redistribution is not allowed, we do allow commercial use of our files. This means you can use the files on products, advertisements, etc. to make money, as long as you follow Vecteezy stipulations.
Note: The resources you find on this site have been uploaded by individual artists or the Eezy Team. These artists reserve the copyright, and only they can sell their art. Any use other than the artists’ intent would need to be legally approved by the original artist, via permission or an allowance of the license.