Fairly straight forward with common behavioral questions. User the STAR method and you'll be fine during the interview. Other questions include work history, background, experience and customer service related experience.
I applied in-person. The process took 4 weeks. I interviewed at T-Mobile
Interview
It usually takes three interviews, though this depends on the store. With your store manager is one option. Sometimes there are two or three different store managers for the second interview. Usually, the district manager is involved in the last one.
Interview questions [1]
Question 1
How Would You Handle a Challenging or Demanding Client?
The interview was pretty simple and straightforward. They asked some questions the were relevant to the job and experience with de-escalation. There is a questionnaire you have to pass in order to be officially hired.