[Lynx-lynx]

"If you are dissatisfied with your device purchased through Kobo.com for any reason, you have thirty (30) calendar days after the date of purchase to return the device to Kobo. All delivery charges required to return the device are at your expense. Upon receipt of the returned device, Kobo will refund the cost of the device to the credit card charged at the time of purchase, less any applicable restocking fees. "
The Australian version

And there you go, Kobo does allow dissatisfaction returns here. Samsung doesn't, as soon as the box is opened you can't return a Samsung bought direction Samsung
Good to see Kobo does

Pity that the kobo ereader store has stuffed up purchases with Visa and mastercard - they can't be used for purchases because of unspecified reasons - although they still show as you can.