Amazon has the Panasonic kit for $54 (from amazon with free shipping) or from $44 + shipping from other sellers.

If you ordered the netgear kit from amazon, you should be able to return it.

Interesting pricing point: Amazon sells the Panasonic kit (2 adapters) for $54, but they sell a single Panasonic adapter for more than $60. Another featured seller has the single adapter for less than $25 + s/h.

-David