Looking to ask for an pay increase by providing more value through extensive product and brand knowledge of which is not typically required of a sales associate.
It sounds like you are not paid in the form of sales commission, correct?
The bottom line - out sell your peers and you will move to the top of the pay scale.
Sales people are only compensated on their production. Product and brand knowledge is not an option for a top sales person, it is a minimum standard requirement.
So, do as you are suggesting and master the product and brand. Then, become the most helpful sales person to the customers. And, outsell the others. You will be noticed.
By the way, if you are looking to make a career out of sales - a noble profession - product and brand knowledge is just part of the equation. You will need to master many other areas.
If you would like to chat, schedule a free call. Go to my profiile for a promo code.