Installation of Telephone Line

Telkom, at my 65 year old mother's request, installed a telephone line at my premises on 15 January 2015. The person attending to same glued the cord to the wall *****edly. When advised of this and in trying to assist him with same, the installer was extremely rude and told my mother she could do it herself flinging his tools. On 20 January 2015 I conveyed my extreme disappointment at the service received and to date have received no response. This blatant disregard and non-attempt to rectify the service or school the installer is customer service at its worst.