LONDON (Reuters) -Subprime lender Amigo Holdings on Monday said it continues to be open for a reverse takeover as the only possible prospect of delivering future value, after having received a number of unsuccessful tentative indications of interest. "We believe that a reverse takeover is the only possible prospect of delivering any future value for shareholders," CEO Danny Malone said in a statement. The company said it has agreed the sale of its RewardRate portfolio and has started the sale process of its Amigo Loans' charge-off portfolio.