Poor service from Telkom

Three months ago, I migrated to LTE on the advice of a representative from sales to move from ADSL to LTE because of cable theft in my area. I was told that the transmission would be smooth. However they have cancelled my my email. Since then I have been given the run around. I cannot send or receive emails. Nobody at Telkom seems to know what to do. I just need to have access to my emails.