With the BKK Salzgitter APP, insured persons can communicate even easier, faster and easier with their company health insurance. Sign up for our loyalty programs, upload your bonus receipts and receive your bonus. Or submit your bills for special services, such as professional teeth cleaning or osteopathy, with us for reimbursement. Changes to personal data (address, bank details), photo upload for the health card or ordering a new card are easily possible. If a membership certificate is needed