Can you sell bitcoins? Do I just go up to the clerk a and hand him my invoice i recieved at BitInstant. Took the deposit slip to CVS and told the clerk that I was paying a bill. Can some explain how this works and what I have to do. The impression that I immediately got was that this bitcoin buying process was going to be a huge pain in the buttocks. We can both agree on this: Of course it is not a direct purchase, as you will be utilizing Walmart2Walmart Money Transfers as a middleman. The bitcoin price went into freefall this morning despite good news for.