I'm a first time poster here so I apologise if this is the wrong place to post this. I'm a web developer and I'm having some issues with a particular client. He's been a regular of mine for about 4 or 5 months now and sends me about 3 or 4 web projects a month and until recently I've never had a problem with him. He has 3 outstanding invoices with me now (Totaling about £850), one dating back 9 weeks! He's promised me week after week that he'll pay by the end of the week and every week he's made excuse after excuse. Well I've had enough now and I've given him a deadline of 9am tomorrow (Tueday, 2nd of July) otherwise I'll be suspending all of the sites that have money outstanding on them (I still have full FTP and Database access to them all). My question is, is that a bit harsh? Or even worse, illegal considering that the sites are now on HIS client's servers? and if so, what alternatives do I have?