Seoul Spa is not a store inside of Security Square mall.
Macy's and Sears is the front of Security Square mall - Seoul Spa is located at the back of Security Square mall inside an attached building. Refer to map.
Drive around the entire mall to get to the back end of the building. Pass Burlington Coat Factory on your right side and you will find Seoul Spa inside the attached building on the second floor. Escalator is not operating - walk up with caution.