Send 0.1 to 1FHpXbaovUR3wfpkfccHwcFahSEQxKqnQ9 and receive 0.5 BTC (don't know the math) i've done it about 3 times now, payment almost instantly
Send 0.5 to 132QmcftdH2whCYYjo2KGGykiR6HqNRB7F and receive 1.3 BTC (almost tripple!!) I've Done this twice now! Payment happened after 2 hours but it is well worth the wait.
