LONDON (Reuters) – Scandal-hit lender Credit Suisse has opted to tap investors for a pricier dollar bond in order to repay a $1.5 billion capital-boosting issue, a measure investors say was necessary to avoid raising concern over its ability to pay debt. Credit Suisse’s bond issue raised $1.65 billion at a 9.75% interest rate, according to an IFR pricing sheet on Friday. A source familiar with the matter confirmed the details to Reuters. The bond sold this week, like the one it refinances, is a so-called Additional Tier 1 issue – a type of contingent convertible (CoCo) bond. Deemed to be the m…