I am appalled, cremation is very popular in Britain, more so than in America I understand. To the best of my knowledge such facilities tend to belong to the local councils in Britian, therefore are not normally in private ownership so such an appalling situation couldn't occur here.
Presumably it started with a few when the equipment failed then seemed like an easy way of making money.
When you say your final farewells to loved ones you expect that to be the end of it, grieving can take its natural course, you really don't expect to have to start the whole process over again.