As an employee you have certain rights in respect of your employment contract. If your employer does not adhere to these rights such as not giving you sufficient notice of termination, then you may be able to make a claim for wrongful dismissal.
There are many things that may be considered unfair dismissal, and you should check carefully with your solicitor if you believe you have been wrongfully dismissed or you have been deprived of any contractual benefits during your notice period.