The reality TV star, who last week stated that her proceeds would go directly to help survivors of the natural disaster, was criticised for misleading the public.
"I feel compelled to speak about something that is in my head and my heart," Kim started. "Over the years, I've had to grow a thick skin."
Breaking her silence in a blog post, the 33-year-old wrote a lengthy message entitled "Giving Comes From The Heart" and gave the full financial breakdown of her eBay Giving Works auction.
"Being in the public eye, there are times I feel like I get criticized for any and everything I do," Kim wrote. "I'm used to it now. I just choose not to feed into negativity or become consumed by it.
"The problem comes in when I get attacked for giving and trying to help people."
The mother-of-one added that her charitable nature came from her late father, Robert Kardashian, who "always taught [her] the importance of giving back."
"I don't publicize everything I do to help charities and people all over the world," she added. "I do it because I want to. I do it because my dad taught me to. I do it because it's the right thing to do.
"So for people to attack me for giving ten per cent of my eBay auction sales to the people of the Philippines, that hurts.
"I do eBay auctions monthly and change the charity or church from time to time. I give ten per cent of all my earnings to charities, not just these eBay auctions."
Kim and her fiancé Kanye West
Kim then explained that when the numbers were broken down, the earnings were divided between auction management agency fees, eBay listing fees, end of auction fees, eBay Store fees, Paypal fees and more, which accounts for about half of the money raised. Ten per cent then goes to charity.
"Over the last 5+ years, I have listed thousands of items on eBay Giving Works for various causes," Kim concluded. "I will continue to do what is in my heart and am happy to know many others have enjoyed purchasing from me, as they too are giving with me.
"Giving comes from the heart. We all need to be reminded of this as we celebrate the holiday season this year."