If those are the exact words from your contract, you can't do anything. It already says there you cannot offset and cannot buy out.

The last sentence doesn't really mean anything. They will just calculate your last working day and pay your salary.

I don't advise on doing that. You're basically breaking the contract terms. Bad things will happen but I don't think they will sue you till your pants drop. Your credibility will be hurt by doing this.

Also if you put it in the boss' room without getting the acknowledgement from the boss that he/she received the cheque, they can further say you just left with no news. When you're working, it's always best to get confirmation. Don't leave anything to chance.

I think you should discuss with your new employer on this. Most employers are flexible enough to provide additional leeway for people to join their company. I hope you told them that your company has a 3 month notice period and you need to discuss with your current company first. You must always remember to mention things like this when joining other companies, just to set an understanding. If they really want you, they will wait.

This post has been edited by ChaChaZero: Oct 25 2016, 12:34 PM