Hi, I have had this experience. In your requirement section on your gig, make it compulsory that the buyer answers all questions. So you will give him a custom order, if you set the requirements on you gig, you will get a message after the buyer has excepted the offer (It says something like: have you go all the requirements to start the order), check if the buyer has given all you need, if he hasn’t press you have not received what you need. The requirements is a section which makes sure the buyer knows what he is purchasing. Go to Help and Support and file a complain, or just accept the cancellation and carry on. I do not agree if buyers do this! I certainly would complain to support about it.