What happens if you deliver late on Fiverr?

[Btaliat]

Fiverr is based on trust. Both the freelancers and the clients need to trust themselves. Therefore, it is advisable for the freelancers never to involve in something, like not delivering on time, in order not to spoil the reputation. But in case there are some situations that can warrant that, there is a need to tell the clients and inform them about the likely issues for them to understand. What else do you think?