(1) A bill may be in the form of a lump sum bill or an itemised bill.(2) A bill must be signed on behalf of a law practice by an Australian legal practitioner or an employee of the law practice.(3) It is sufficient compliance with subsection (2) if a letter signed on behalf of a law practice by an Australian legal practitioner or an employee of the law practice is attached to, or enclosed with, the bill.(4) A bill or letter is taken to have been signed by a law practice that is an incorporated legal practice if it has the practices seal affixed to it or is signed by a legal practitioner director of the practice or employee of the practice who is an Australian legal practitioner.(5) A bill is to be given to a person (a) by delivering it personally to the person or to an agent of the person; or(b) by sending it by post to the person or agent at (i) the usual or last known business or residential address of the person or agent; or(ii) an address nominated for the purpose by the person or agent; or(c) by leaving it for the person or agent at with a person on the premises who is apparently at least 16 years old and apparently employed or residing there; or(i) the usual or last known business or residential address of the person or agent; or(ii) an address nominated for the purpose by the person or agent (d) by sending it by fax to a number specified by the person (by correspondence or otherwise) as a number to which faxes to that person may be sent; or(e) by delivering it to the appropriate place in a document exchange in which the person has receiving facilities; or(f) by emailing it to a client who requested that the bill be emailed; or(g) in any other way authorised by the regulations.(6) A reference in subsection (5) to any method of giving a bill to a person includes a reference to arranging for the bill to be given to that person by that method (for example, by delivery by courier).(7) In this section agent of a person means an agent, law practice or Australian legal practitioner who has authority to accept service of legal process on behalf of the person.