Amazon Vendor Support is very similar to Amazon Seller Support. There is a real issue with consistency. Sometimes you get fantastic answers and sometimes you’re left with more questions. It can be frustrating and often it takes a lot of back-and-forth to get the answer you’re looking for.
It also largely depends on the country you’re dealing with. Vendors in the UK, for example, get an onboarding manager for the first three months, to help them get started. This doesn’t appear to always happen for vendors dealing with Amazon in the US.
Similarly, it depends on the size of your brand. Large vendors are often assigned an account manager after the first three months. They are then on-hand to answer any queries the vendor may have.
Amazon have also started the Vendor Success Program, which provides assistance to sellers who aren’t large enough to have an account manager. However, the program has received mixed reviews from vendors, who have reported varying levels of service.