the mall usually have sop for removal. can ask management for help

they facilitate and usually have contacts to do so.

what does your rental contract say about non payment, exit clause
eg. if rental is not received in full by xxx day of the month for continuous xxx months, this contract is considered null and void.
...
party A reserve the rights to clean out and the cleaning fee shall be borne by party B

something like that?

i see malls they put up notice on the door by landlord if no pay in x month, shall commence clearing. Mall side usually have contract that the shop must open by 10am and close by 10pm also.

usually mall will assist as much as possible to maintain their reputation.