Agreements between Cuba and three US telecommunications companies to provide long-distance telephone service will be rejected by the US government because they would give Cuba too much money, officials said: the three companies involved in the agreement are MCI Communications Corp, Williams Cos’ WilTel International Inc unit and LDDS Communications Inc; the expected US veto comes as bad news for long-suffering Cubans who face jammed circuits and protracted waits for calls between the US and the island; at issue is a $4.85 surcharge allowed in the agreements for collect calls; an official said the three companies were told repeatedly during their negotiations that the State Department would not agree to a surcharge; 1992 legislation approved improved telephone service between the US and Cuba.