CUC requires a security deposit for all post paid accounts. In limited cases, CUC will accept a Letter of Credit from a customer's bank in lieu of a cash deposit.
All cash deposits held by CUC will accrue interest at the prevailing rate for one-year certificates of deposit on Grand Cayman; the interest rate paid on deposits shall reflect the rates paid by Cayman Islands banks for certificates of deposit above CI$3 million. The deposit interest will be credited to a customer's electricity account monthly, which is reflected on the billing statement as a specific line item.