Best demon for this job, need advice

Hi guys,
I am a business man making sale online. But I am lazy type of person to have competition which I mind my own business. So recently I got an email from other seller who have same product with me and claim that she want to report my shop for copy cat her.
I was like Lol, I started online business since 2010 and just lots of dumb ass person like this. Just because I have more products she doesn’t have and much cheaper.
So she want my shop get suspended, bring me too much trouble.
I want a revenge, yes I want her to suffer too, but not death.
I hope all she did will return to her , maybe got suspended herself or terrible business something.
What demon can I work with?
I only work with Leraje for relationship problems before. Any advice?