How do i look up my payment history for my phone bill with metro pcs?

I'm trying to figure out how to get a 13 month payment history

To be honest, I don't know, but I can ask my customers. By the way, did you know that most people now pay with cards? Here I did not know when I opened my store, fortunately it is not difficult to buy credit card machine now. After I bought the terminal, there were more customers and, of course, revenue also increased.