Valvoline Instant Oil Change [VIOC]

Ive been taking my job van and other cars in for a oil change at valalline oil change for over a year so I told my wife to take her car there for a oil change on 8/9/2019 she ask the assistant manager how much for a oil change and told her that it cost $1000 dollars and she replied well I must be at the wrong place and he told her to have a nice day and she drove off and went to walmart for a oil change. What kind of service is that so I will not be taking no more service to valaline oil change again.