When I have questions, I prefer to phone, because communication by e-mail can be delayed for several days. It is good, that in your shop I have the possibility communicate with support manager by phone.
In my opinion herbal drugs are more safe. And I have already checked, that it works no worse than ordinary medicines! For example, I lost 25 pounds with Acai Berry pills and there are any side effects!
A huge part of a brand drug price consists of research and development costs, and advertising. Drug companies that produce generic versions simply buy chemical ingredients and spend money on production. Thus they can sets lower prices on their products.