Relax lah =)
In all service industry, there's no 100% confirmed Gurantee* that you will get your service done within one day unless you have a factory full of sweatshop workers.
(*K I can't spell... C6 Englsih one)
Don't have the typical Singaporean attitude... I'm customer, I'm king...
We are all human, be understanding. If you are in urgent need, inform them in advance and be prepared to pay a premium for that.
Basic knowledge right? To move up the Q in the process chain, something must be done (Mostly payment)