"Most of you have at least some idea of what he and his family has faced over the last five years. What you may not be aware of is the financial toll it can take - lost work days, travel and accommodation costs, child care, parking fees, it all adds up really quickly."
Kooge's mother, Gaylene Kooge, said her son did not need the stress of how to pay rent and other expenses at this time.
"Dear Mike has so much debt incurred by this whole cancer experience that he is now so worried financially, a burden that doesn't help when one needs to concentrate on getting through this," she said.
Mrs Kooge said her son's illness was especially hard for the Kooge family who lost the Edge personality's nephew, Jeffrey Paterson, 21, less than a year ago through brain tumours.
If you want to donate, go to givealittle.co.nz/cause/getwellkooge.