Uncooked chicken at Nandos Columbine square in johannesburg south

myself and hubby went to Nandos Columbine square in Johannesburg south on Thursday and we requested our chicken to be well done, it got to the table and the chicken was still raw and the blood was clearly visible and water was seeping from the chicken, I asked for the chicken to be re cooked which they did and brought back burnt chicken, the manager did not even have the decency to come and apologise, I was so disgusted I just the left everything like that. if that is the type of service they render they will not see me there again