Employee Elaine Frankie-French said it was her first day back from stress leave since she had a gun held to her head when the store was robbed by who she believes to be the same gang on October 25.
Manager Stevan Morrow was struck on the head with the butt of a firearm when he refused to open a safe on Saturday.
Ms Frankie-French said four men barged into the shop and smashed every glass cabinet.
"Four guys ran in the shop,they smashed as they went,"she said of the Saturday robbery.
"Then a guy with a gun came up and spoke to Stevanand I ran out the back and I rang the police and pressed the beeper and then the guy hit[him] on the head with a gun. I said to them,'Get out of the shop'.
"They smashed every cabinet this time in the shop.
"They worked so quick it was unreal and they've taken most of our stock."