Bad Customer Service & Internet Service

Internet ADSL not upgraded from 10Mb to 20Mb. The sales (Telkom) team have upgraded the business package R950.00 about and haven't phoned us back. Technical department saying can't upgrade. Lying Telkom Sales team! Telkom coverage map says 10Mb ADSL. Speed testing says 16Mb. Who's telling the truth? The accounting department can not help us or do not want to help. Supervisor what supervisor! Telkom WhatsApp does not work, Error Msg please respond with your South Africa identity number, have enter the right number. Messenger say only please cal 10217 the end of all the menu option.