Does anyone know when you weigh in your luggage with Air Asia do they pool your luggage weight allowance together? Say if a family of 5 are travelling together and purchase 2 x 20kgs & 1 x 15kgs of pre paid baggage and only check two cases which come in under the weight allowance combined will this be okay or do we have to have 3 cases with weight allowance per case.. Thankyou...