Promus Hotel Corp., Memphis, Tenn., hired American Express to provide bundled services for its $40 million 401(k) plan. Five American Express mutual funds are offered as investment options along with company stock. Daily valued record keeping, trust and administration and employee communications and investment education in English and Spanish are provided by American Express, said a spokeswoman for Promus. Promus handled monthly valued record keeping internally, using a system from SEI. Funds from Delaware Investment, State Street Bank, Vanguard, Western Asset Management and Dreyfus had been offered before.