Called sportsbook and found Yankees +150 vs. Texas. Called Galaxy sports(affiliated with Diamond) and found Texas +115. Called back first book and asked if their line was correct. They said it was and Bet$500 Yankees. Called back Galaxy asked clerk if their line was correct. She said it was but just to make sure I asked her to speak with her supervisor because I did not want any problems and saw totally different line elsewhere. Thirty seconds later she came back and assured me their line was correct. So I bet $500 Texas. Later got online and found Galaxy bet was cancelled. When I called other spot to cancel, they said I could not. So I ate $500 on Yankees. Have spoken to few experienced sports bettors and they all thought Galaxy should have honored my wager because I did not bet online and I called and insisted clerk speak to supervisor before placing wager. Only have two outs. How am I supposed to know which line was wrong? Would recommend not betting with Galaxy-Diamond. What's to stop them from cancelling a football bet after the line has moved several points? Would welcome opinions from experienced bettors. Thank you, neophyte bettor.