T-Mobile Retail Sales Associate interview questions

UN-flexible. The best way to describe the interview process for a corporate store in my area is inflexible. After making it to the second interview process, I was unable to get a decent time for the interview when talking with the store manager. They were extremely difficult on the phone and just pointed the finger at me saying it is my fault I cannot meet the one time they gave me and would not allow me to reschedule because the district manager is "a very busy person." Even after being ridiculed, I was unable to get the contact information for this person and even called another store to ask if they know the contact for this manager. I later find out that the associate I talked to complained that I "kept them on the phone for 20 minutes." I am optimistic about T-Mobile and would still like to reschedule, but this in-store experience is horrendous.