Grow-Again ointment is a proven treatment for reversing male hereditary baldness.
Conclusion (Consequently)
Offering a manufacturer' rebate on the purchase price of Grow-Again would be unprofitable for the manufacturer.
Intermediate Conclusion (Therefore)
Offering a manufacturer' rebate on the purchase price of Grow-Again will not increase sales.
Evidence
Grow-Again is a proven treatment for reversing baldness. Five drops daily is the recommended dose. Exceeding this quantity does not increase the product's effectiveness.
Evaluate
This is one of those arguments that is so disconnected/bad that it's hard to even understand what logic the author was going for.
Why is the author making a jump from to "offering a rebate will not increase sales"?
Those two ideas don't seem to have anything to do with each other. Let's picture someone going through CVS, considering buying some Grow-Again for $40.
If the package had an offer for a $10 manufacturer's rebate, wouldn't that potentially motivate some people to buy the product, who otherwise would feel like $40 is too much?
Does the author think that the people buying this product are too rich to care about a rebate? Are the people who buy this product people who know themselves to be someone that will not remember to submit the rebate form? Are they turned off by a company incentivizing the purchase via a rebate? (i.e. "If this product really worked, they wouldn't feel the need to offer a rebate)?
How is any of this connected to the fact that five drops daily is the dose, and exceeding this quantity doesn't add effectiveness?
Goal
Let's look for an answer that helps us connect some dots here. More than anything, we want to help convince ourselves that offering the rebate won't increase sales.