You've probably not received a call because, honestly, your complaint is likely at the back of the line among all the other responsibilities within the store. And, the message may have gotten lost. And, your information may have been mis-written. And, a million other possible things.

But...let's face it, if it's that important to you, why not just call the store a second time? Waiting for the mountain to come to you seldom results in anything worthwhile.

If you call and politely and respectfully ask for the store manager, and ask when the manager will be in if he/she is not in at the time, and eventually do speak with the manager, you'll have a chance to voice your concerns. Be an active customer and stand up for yourself.

Hi yayam-Welcome to MySears.  I am to hear you were not helped during your last visit.  Please know, Sears absolutely does not want their customers to feel as though they are not being attended to.  This is not up to the customer service standards of Sears.
I urge you to please try and contact the store manager, once again.  S/he will want to hear this feedback, and do what they can to make sure you continue to shop at your local Sears.

This is the time of year when "resources" are stretched extra-thin.

I sincerely doubt a Vacuum Sales Associate was avoiding you, seeing that they are paid on a STRAIGHT commission basis.

The one scheduled Sales Associate could have been doing a "stock-check" in the store's warehouse, while you were waiting on the floor.

And, timing resulted in another Customer getting more prompt service.

Also, Sales Associates, outside of the Vacuum department are in NO WAY encouraged to "jump in" with another department's sale.

Hopefully, the next time you visit a store, the associate will be RIGHT THERE for you.