Telkom LTE Contract Enlargement

I have a Telkom home LTE internet contract (a Telkom client for the past 6 years). I want to enlarge my existing contract that expires in 18-months. The Telkom call center referred me to a Telkom Direct office. The Telkom office informed that in order to ENLARGE my contract to an uncapped contract - which is much more money per month and for a 24 month period - I need to pay a penalty of R910 in order to be able to do that. My question: "How can any business in these times expect this from a customer that wants to bring in MORE business!" This policy stinks and is totally counter-intuitive - makes NO BUSINESS SENSE! I opted to engage in a new contract with another service provider for my streaming needs. So yes I will definitely not renew my contract with Telkom when it expires. Also, I am one of the happy clients as the service I received from Telkom over the years was good! But this really does not make any sense to me! Telkom you lost a very good customer!