Review Unreasonable service staff

Venue : Blk 85 Toa Payoh Ang mo branch.
Date : 8 jan 630pm.
Took a plastic container of love letters and the container dropped on the floor. The packing staff there immediately chided me and told me to pay for it. I refused and insisted to speak to the manager who was out for dinner at 7pm.
The main cause of the drop is the plastic handle being poorly moulded and it doesn’t fit. The staff did not even check and insisted I pay for it.
Really unreasonable.