L.J. Hooker Bundaberg in Bundaberg

My advice: never use L J hooker Bunderberg. Lack of professional standard. I vacated a unit looked after by L G Hooker Bundaberg almost 2 months ago and they are really unprofessional.
First they cancelled the person that I arranged to do carpet cleaning and got one of their own without informing me and after repeated email sent me an invoice of amount $430 (cleaned carpet and 2 bedroom unit).
It is almost 2 months since I vacated and still waiting for invoice for curtain cleaning and light bulb change.
I had to take them to RTA and they gave amount of $135 to change 6 light bulb and failed to produce invoice even now. Similar story with curtain cleaning - the unit I was renting is already rented out again now for almost 2 months and the curtain has not been cleaned (by the way the curtain cleaning was not part of written contract) but they have charged $70 without invoice.
Almost 2 months yet not able to give invoice but claimed bond money from RTA, Unfortunately RTA does not have power to request Invoice.
I am at this stage contemplating whether to take them to tribunal.