Cybersmart does not care for their Loyal clients

I have been a loyal client off Cybersmart for the past 15 years I currently have a 2mps line and receive 300 gigs off data. I wanted to increase my line speed Cybersmart amount works out to high if you include the line rental from Telkom. I have advise them they advise I must send my request to there account department I have done that a Lady by the name off ****ia Chetty advise that they can't do better and that just the way it is. Cybersmart does not care for their Loyal clients very disappointing service.