I usually lurk and just read the offline marketing but I was wondering what would you guys do in my situation. Background:A stranger gave me $160 for a basic traffic delivery, I'm highly overprice and did not have any review at all which I found it was very unusual for him to just hire me out of no where. A month or two later,I went back and ask him if he needed any help. He said he will pay me $50 in advance for manually submit 50 link to search engine;Google,Yahoo,MSN and Bing. He said when I am done,he will gave me 50 more link. Now mind you, we rarely communicate when I done his service before because it was just some basic outsource work. I ask if he wanted me to take screenshot or screen record for proof but he said he trust me,which again is a bit unusually since I'm just a stranger with no review or anything to show that I won't just use automatic search engine submission. I found out Yahoo and MSN was bought out by Bing. I could either not tell him and charge him full price for the next order or tell him,ask if he wanted a refund then only give me half .I couldn't sleep if I took advantage like that so I told him ,he said keep the $50 and he will just pay me $25 for the next work. Yeah,I'm not very good if I do blackhat related work I really don't understand how he could trust me like that, can anyone please explain to me? I even offer refund and said I wasn't really mind about it.