An NCAA investigation at West Virginia University and an FBI probe at Nevada-Las Vegas surfaced yesterday in college basketball. WVU claimed exoneration "from any recruit violations concerning Phil Collins' and UNLV said federal agents' visit to campus "was purely a courtesy call."

Collins, a sophomore center who was a junior-college All-America last year, said has been questioned by NCAA investigators about whether he took money to sign a grant-in-aid at West Virginia. He told the Associated Press he did not take any money.

In Morgantown, Athletic Director Dick Martin said he had received a certified letter from the NCAA clearing the school in the Collins case. Martin refused to show the letter to the AP saying, "It's an NCAA matter . . . I'm inclined not to." He denied that the basketball program, under Coach Gale Catlett, is under investigation now.

In Las Vegas, FBI agent Bill Jansen said, "We are currently looking into allegations that came out of the University of New Mexico (FBI probe into basketball irregularities) about UNLV."

Athletic Director Al Nagratti of Nevada-Las Vegas termed that statement "highly inaccurate. We just finished meeting with two agents . . . on the campus at our requests."