Jocks Electrical Worst Customer Service

Terrible customer service. I called in to complain about an invoice which they billed me for yet the bill was for my mum. They allege that they contacted my mother and sent through an invoice to her but to date my mother has not received any invoice nor a telephone call from Jocks. When asked to produce evidence of the numerous occasions they have tried to contact my mother, I was informed by the owner that she would revert with the information, instead of reverting with the information I was met by a letter of demand from NDC , when I called to enquire about it was told to do whatever I want and if I want to report them I can go ahead, they don't care, furthermore that they will not and/or are not prepared to look up the information I had previously requested. Not only that I indicated to the owner that one of her employees swore me, and nothing was done about that. I have never met a company that has disregard for its customers and that speaks rudely to customers.