Hi,
First, because you are a store owner you will not get the 50 free insertion listings that another member mentioned.
If you request a higher selling limit by calling eBay it is immediate if they agree to do it. I'm not sure they will increase your limit right now because of the 3 neutral feedbacks. I think those (at least one or two) will have to age off first.
Sunny
"There cannot be a crisis next week. My schedule is already full."
Henry A. Kissinger