Premio s50 Cell phone battery

its been about 3 weeks since i laid a complaint regards to a cellphone battery, I have received multiple phone calls regards to a cellphone battery I spoke to Jillian at head office she advised that they would send me a battery which was fine it would have arrived at my house a week alter one week turned into 2-3 weeks . As per Jillian the gentleman who deals with the dispatching of the battery was in isolation, which I understood, but does the work have to stand still and wait for him until he arrives, if he is back at work (I don't no) he could have to couriered it over night. I phoned last week and was told she will follow-up and get back a week later noting has happened, I don't want any phone calls with empty promises and I'm not explaining myself again. My mother is at home 70years old with out a phone, waiting for a battery that will never arrive. This whole situation is frustrating I need this thing to be sorted.