53-year-old woman with the same last name and similar first name. >> it says she was born in '53. >> reporter: in a statement safeway says we have extended our sincere apology to the customer and offered to pay any medical expenses incurred as a result of the prescription error. it goes on to say, we are very concerned about how this happened and we are conducting a full and complete investigation to ensure our procedures and policies are being followed. mareena isn't so convinced. >> sorry is not going to cut it. i'm going to have to deal with this for a long time. >> a costly mistake. russel...