What has happened to common sense.
DH Gate is not a legit supplier, and you cannot do things like this an expect for it to be okay.
So you make a sale, (you are probably selling well over the odds, or being new to this whole thing making a slight loss after fees). Some customer buys from you, you then ship direct to customer. They then have to pay import + VAT.
Think they will be happy? I don't think so.
You then get a claim made, and will need to provide all sorts of proof. Chinese suppliers are notouriously unhelpful for this sort of thing, especially ones you have barely made contact with on DH Gate.
You have not even done any research on the product you are selling.
You are so bloody lucky its unbelievable, start over and forget DH Gate.
I've just saved you a lot of money and maybe made you a bit.
Cheques made payable to Bevsey123.