Exhibit 99.(h) Advent Claymore Convertible Securities and Income Fund (a Delaware statutory trust) Auction Market Preferred Shares ("AMPS") 1,200 Shares [ ]% AMPS, Series F7 1,200 Shares [ ]% AMPS, Series W28 Liquidation Preference $25,000 per share...Purchase Agreement • March 10th, 2004 • Advent Claymore Convertible Securities & Income Fund • New York
