Malaysia summons

Cross the border with family earlier to shop... Everything went well till the return trip.. Was traveling on a car lane but suddenly became bus lane, din really notice so just carry on moving den I reach the checkpoint and I shifted in.. Little did I expect, once I cleared the Malaysia checkpoint I got stopped... Den abang told me I cut Q... Issue me a summon, but I stay firm sayin I will pay online myself... Now the problem comes.... Where do I settle this summon online.? Someone pls enlighten me...