Sales incentive
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sales incentive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rebate that I've seen before include "Refund - discount" , "Money back for beater" , "price reduction" , "Sum paid back" , "Refund of part of the amount paid" .)