Metro Pcs

Switched carriers from Att to MetroPcs. Service has been terrible: unable to send texts, no internet outside of wifi, nothing. I called for assistance, they were unable to fix via phone, asked me to go to nearest metro location.
I get to this location, there are two women, who knew nothing about iPhones. I don’t want to stereotype, but they were both possibly in their early 60’s, shouldn’t they have someone with some training in technology working at these locations? their age would not have been of importance, if they had some training, but considering they didn’t, they know as much as my 60 year old grandma — -who knows nothing about technology.
Even if I wouldn’t have gone in with a technical question, I still wouldn’t purchase a phone from this location, considering I was told, and I quote «we know nothing about iPhones». What can they offer in regards to retail suggestions?
Giving them two stars as they were as polite as they possibly could— still, not knowledgable.