Online clothing order

Ordered an item on 25/05/2015 which was 65 Australian dollars - paid 80 in order to receive a tracking number. Never received an order number or tracking number. After various emails and phone calls were told that order was lost. Gave me a 90 dollar online credit to re-order. Did that on 16 June. Various emails later I was told on 22 June that the item I ordered was sold out. Re-ordered on the same day and once again - various emails later and I am still waiting for a order number and or confirmation that my items were sent.