Replacement charger for shaver - advice needed!

Hi OzB I'm hoping someone on here has the tech knowledge to help me out!

Earlier this year I cashed in some work rewards points to get this shaver:

Unfortunately, someone in the fam accidentally chucked the box that had the charger within. Does anyone know where I can buy a replacement charger for this model? On the back of the shaver it says

Model VSM7056A
5.6V 80mA
Adaptor CA09

Obviously the kit itself is only worth $30 so hoping there's a decent replacement I can find for a reasonable price..

Cheers! Vinnie