@Enabled I know, this is why I said should allow up to 7 days and not must allow up to 7 days. If the author specifies 1 business day support, buyers are entitled to complain and get a refund, I understand that. But my post was to put emphasis on the human nature of authors. I am saying that it’s not like buying a software from Apple or Microsoft, focusing on mutual understanding can often be mutually beneficial.
Although let me say that, as an author, it is better to answer quickly saying “I can’t handle this request right now due to [whatever reason], will answer within [give time frame]. Please bear with me.”.