I do not know the definitive answer but, thinking this through....
Say someone died in Australia, for instance. By the time that the family in Britain found out - by letter, which could take several weeks to arrive - to send any money to pay for the transportation of the body, a very long time, possibly months, will have passed. To keep a body in cold storage all of this time would not really be feasible - and also would cost rather a lot!
Also, if it was the summer, the body would probably need burying before too long!
Although telegraphy had been invented, it was not necessarily everywhere, so communication would still have been rather slow.
Just my thoughts....