Sorry. Yamimeal does not support changing in address after an order is placed. Customers can negotiate their situations and demands with Merchants via IM.
P/S: Regarding the issue of changing the delivery address while being offline, Yamimeal does not guarantee the replaced address for the delivery will be the final destination for the order placed.
If you need further assistance for this request, please send a ticket to Yamimeal customer care representatives via https://help.yamimeal.com/hc/en-us. We will try our best to help you as soon as possible.