Samsung Electronics Service said on March 30 it will expand its reservation service to 169 service centres nationwide from April 1. The service lets customers choose a time for checks of phones, tablets and wearable devices without waiting. A pilot at 23 centres began in September. The share of reservation customers in March rose by more than 50 percent from September, prompting a nationwide rollout.

GS25 said on Saturday that its fresh-food pre-order promotion on the WooridongneGS app logged 20,000 cumulative orders in January and February. The retailer said fresh-food sales generated through the app rose 540 percent from a year earlier. It said meat, seafood and fruit sold evenly, with pork belly and air-shipped salmon fillet among top items. Customers in their 20s and 30s accounted for about 70 percent.