Don't do anything foolish like this because if everyone starts doing this, this business will close for many. Indirectly it will hit many peoples income and their homes. My advice, just forgive the person.
Don't do anything unethical as that is not right and may harm your future business + it looks a little bit childish. What you could do, is stick to the agreed boundaries, and if what you are saying is true, you can either get them to court, or at the very least file a report on ripoffereport or some other website that holds public reports on fraudsters.
yeah i would just move on from it and take it as a loss just never again make the same mistake. got to get it on paper.
Write a review post on them and how they are scammers and people should beware. Use some popular site, such as ripoffreport or similar. Than seo that page (build links to that page), so that it comes out above their page for their company name
My advice is: Sneaky 301 - Acquire the hyphenated version of their domain(e.g if they are facebook.com, get face-book.com) - Create a dummy version of their site, exact same design and everything, but full of sneaky misinformation - Do a 301 injection to the hyphenated version Cloaking - Inject a cloaking script into their site. Script should affect only search engine results, make them look like pharmaceutical spam. Cheap ass noobs take months to notice this, and months to fix it. Disclaimer: Do NOT ask me to do this job for you. I am busy with my sites. Go to a black hat forum. Caution: go to the said black hat forum using a virtual machine.
get the host to take them down. if they haven't paid you, presumably the copyright on the site belongs to you, so they are infringing your copyright.
This same happen with me many times, but it not mean ban them from Google, use online reputation, its really very good way, i worked for a client and later he said my work was scrappy even many excuses and later when i gave him all proof he stopped replying me and then i posted on sites like complain . com and and on many sites like this and you know what he paid me and said i am really sorry actually i was out of Country and my partners talked to you, can you please remove those negative reviews [] you must also try this
I have gotten a person banned from Google Adsense. I spam clicked the advertisement on his web page, but do not click at the same ad every time, click on different ads.
Much good advice here. I think it boils down mainly to: 1) Pursue your legal options to collect what they owe you, if at all possible; 2) Post the facts in appropriate online reputation management sites/services; 3) Whether you get complete satisfaction or not, just move on. I had someone owing me $750 (in an offline deal) and when it was clear they weren't going to pay, I used a lawyer friend to pursue a small-court claim. Turns out the deadbeat owed a lot of people and I was far back in the line. After it dragged on for like 5 years, I said s***w this and just wrote it off. On the one hand, I was entirely justified in being mad and feeling robbed; on the other, was I going to let $750 eat at me for the rest of my life?
If I were you I would not think of harming them, but to learn my lesson from an experience. I would keep all future jobs done by contract base. The same time I would not leave it like that I would write bad reviews wherever and whenever I could (Trust sites complain sites) I think Google/ Yahoo have review option too.
There's no way you can get them off of google or lower their ranking. If you got ripped off, oh well -- at least you learned a lesson yourself. Never do work before getting paid first or making legal agreements.