Occasionally, the refillable shampoo/soap dispensers in the showers will stop working.  All they need is to be primed and they’ll begin working again.

Instructions (video) on priming:

If the dispensers are low on liquids (shampoo, conditioner and/or shower gel), additional bulk supplies are located underneath sinks in the Villa.  Please refill them — THANKS!

Alternate video:   http://www.dispenser-amenities.com/support/priming-pumps/