Shocking attitude and no help

Had a fibre line installed today. Telkom sent me the username and password a few days before. I couldn't connect to the network and their support line staff were not available for assistance. I called the guy who did the installation and he requested I call him back at 7pm (2 hours later). Called him at 7 and asked him for assistance and he cuts the call on me and refuses to answer again. The individuals name is Noko. His contact number is ********** . Would just need some assistance activating my account. Dis not expect this type of behaviour from a telkom employer. Shocking.