Customer: You never emailed me the link I paid for. You ripped me off! Me: I see an email was dispatched to bob@fmail.com 15 minutes ago. Can you double check

Customer: You never emailed me the link I paid for. You ripped me off! Me: I see an email was dispatched to bob@fmail.com 15 minutes ago. Can you double check your inbox? Customer: Oops, typo. I meant bob@gmail.com (Happens multiple times each week...)