Customer Service?

We recently bought a new box of diapers for Noah. Same brand that we've always bought for him. A day or two after we started using them he broke out in a rash all over his poor little butt, exactly where the diaper touches him. Evidently he's allergic to them now. So I emailed the company to see if they had changed any of the chemicals they use or anything like that. Here is their response:

We are sorry to learn that your son experienced a rash at the time you were using our product. Each component in XXXXX diapers was evaluated to ensure that the material would not produce irritation or signs of allergic response. Extensive studies also have been performed on the product to ensure the overall safety and performance of XXXXX diapers. Although these studies have shown that it would be unusual for the cause of the rash to be traced solely to XXXXX diapers, we certainly regret that this happened.

With the hope that you will continue to use Kimberly-Clark products, we are sending you some cost-saving coupons through the mail. Thanks again for contacting us and for giving us an opportunity to respond. We value you as our customer.

Can anyone explain to me why I want coupons for a product that my child is allergic to?