Unprofessional behaviour

Very unprofessional & rude behaviour by Charmaine from Designer plus, I logged a call with Discovery & they sent Designer plus to me, firstly they sent an *********** person to me and then I requested another electrician who arrived & completed the job after 4 hours, Charmaine quoted me R350 per hour extra after the first hour covered by Discovery, she the calls me at 8pm in the evening, calling me a ***** saying I ****** her, ***!!!!, she says she didn't think the job would take so long & she wants more money, imagine this! What type of company quotes you then demanding more, please stay away from Designer Plus, Discovery has also escalated this to management, I only hope ************ companies like this are brought to book!