Metro by T-Mobile

I walked in with my wife to metro we spoke with a lady named belen she was to suppose upgrade my phone to the 20$ zte obsidian plus 15 fee and play my 40$ phone bill she tried convincing me into a bundle asking how much would I pay for it out the door she the proceded to take 80$ cash in what I led belived was my bill and a upgrade she added a extra line I didnt intend in having she then proceeds to tell us she is under the influence of drugs another customer came in and asked what company the franchise works with she made fun of him as he left quoting didnt he see all the. F%*king purple in here hahaaha then she cashes out says the extra $ is tax and we left expecting the bill to pend here we are dozens of phone calls later still no refund no bill pending she blamed our decision making we clearly only wanted a upgrade and bill payment blaming the customer for her mistake she admitted to is not any where near good costumer service left with a head ache and 48 hours to pay bill extension still wont explain why there is two lines charged on my account