Delsue Minfield

Had an oil change. Later, I was on the road and had a blowout tire . I called AAA for services, and they sent 2 helpful guy's , #1 took my donut tire and said that it needs air, but he returned to put on the vehicle for a spare, but it didn't fit. No one had my keys last but the WALMART auto shop. What happened to the new spare tire? How they switched.