If you already have existing health insurance coverage and are looking to increase it without paying expensive premiums, you can choose top-up and super top-up health insurance plans. These plans have a deductible and a sum insured. Claims above the deductible limits are paid and so the premiums are low. When you have existing coverage, you can choose a deductible matching the existing plan’s sum insured so that any excess claim would be paid by the top-up or super top-up plan