doeleman has answered your questions but I just want to add few points.
You can refer to the existing webistes hosted in DH here. DHSOTM Most of us are happy here in DH.
It is mentioned by some customers. If you use promo code to sign up, you will have 200GB starting space and 2TB starting bandwidth.
Some customers have already created some speical codes. You will find some in the forum.
Good luck and welcome to DH!
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