We Buy Cars Midstream

We went to Midstream branch to see what cars there is for my father inlaw (he got a walking disability) We requested the keys for one of the cars which we were interested in from the sales person, which then disappeared. We went to the manager to help us but he just said I have to stand here by the help desk and wait i waited for about 20minutes then I just decided to walk off because we are not getting any help. I will never support We buy cars. Even the managers are useless