Quoted from Micky:
Why was it only a partial refund?
They took off 10% for Kickstarter & Paypal fees: "We will be issuing a refund for 90% of your pledge value. Kickstarter keeps 5% and PayPal takes 5%, so we only ever saw 90% of the money in the first place." Considering I thought I wouldn't see anything back, I can live with that whether I believe the reasoning or not.