20 This is an important limitation in the present case because the errors alleged by Mr De Alwis concerning the decision of 1 December 2005 which involved submissions that, firstly, no effective notice of termination of the residential tenancy agreement for non-payment of rent was served; secondly, that the proceedings continued after all the arrears of rent had been paid, and thirdly, that the proceedings continued on the basis of an aggregate of arrears which was overstated (because of his entitlement to a set-off of his cross-claims) are all matters which, even if they were to demonstrate errors of law, may not go to the jurisdiction of a court. However, this is new legislation and the consequences of non-compliance, if that is what occurred, in those several respects has not been considered previously, and as there are also grounds involving breach of natural justice, that is, continuation of the proceedings after his collapse and the allegations of perceived bias, it seems to me that it would be useful to allow him to advance those contentions as well.