“We write further to your notice of penalty determination dated17 June 2014 . We wish to apply for a review/ appeal against this determination. We have tried on several occasions to obtain an activation code to enable us to use the online filing system for filing our NIL return. However, your systems have, for some reason that you have been unable to explain, stopped you sending out this code. Accordingly we do not believe that it is right that you should charge a penalty as it is your system that is stopping us filing the return.”