No. You can't use these templates to re-sell them via any means. TemplateDIY do not provide any re-seller license in general. If you wish to commercially use our templates for any commercial use-case, you can email us back and discuss with us for the commercial / re-seller license.
PS : All the products/ templates that you buy on our websites comes with a Personal-Use License. And thus you could use them personally or for your business as a end user. But you can't distribute, re-distribute, sell further without buying our commercial license.