The increases would be accompanied by planned new services and features, the FT cited Norstrom as saying in an interview.
Earlier in August, the Swedish firm said it would increase the monthly price of its Premium individual subscription in some markets from September, as it looks to improve profit margins.
It said the price will rise to 11.99 from 10.99 in markets including South Asia, the Middle East, Africa, Europe, Latin America and the Asia-Pacific region.