You can update some of your personal data yourself by logging in to S User Account. You can also visit a co-op member service outlet (available in nearly in all Prisma and Sokos stores), send a message using our feedback form – select “asiakasomistajuus” (co-op membership), S-Etukortti card and Bonus as the subject matter – or by calling the S Group’s co-op member service, tel. +358 10 76 5858 (Mon–Fri from 9 am to 4 pm, call rate €0.084 per minute).