why did you refund the $100? no point ya
he will not return and he will not win the a-z either:
only buyers who live in the following countries are covered under the Amazon
A-to-z Guarantee for qualified purchases: Australia, Belgium, Brazil,
Canada, Denmark, Finland, France, Germany, Great Britain, Hong Kong, Iceland
, Ireland, Italy, Japan, Republic of Korea, Mexico, Netherlands, New Zealand
, Northern Ireland, Norway, Portugal, Scotland, South Africa, Spain, Sweden,
Switzerland, the United Kingdom, and the United States. (including U.S.
protectorates, e.g. Puerto Rico, U.S. Virgin Islands, Guam, American Samoa,
APO/FPO, etc.).
you can just say f**k and give a return address ask him to ship back with
all original package and matching serial number. say restocking fee will be
charged if the problem is due to improper set up by the user. he should back
off. even if he return, u can just charge him the restocking fee.