Make sure if you want to contracting a fiverr seller, you should not buy more than one gig to start with and if there are any issues contact fiverr team immediately. Many are victims and what some criminally minded buyers do is that they will open multiple account and also they want to hack your fiverr account details and if that happens. They will play on both sides. If you have important application to sell, they will buy but sign in into customers account to make quick order delivered finalization. They practice same thing with buyers too. Let every members be vigilant and also be at alert.
Reply to @kjblynx: I agree, Fiverr is very user-friendly, once you learn to click “resolution center” or “demand a modification,” everything becomes super easy.