Telkom lies

I have received literally 50+ calls from a marketing company Telkom appointed insisting i upgrade and that my contract type will be discontinued so i have to upgrade. THIS IS, ACCORDING TO A TELKOM AGENT, A BATANT LIE. Telkom you are a blight on society and i wish you could be erased. I despise the continued harassment i receive from the marketing company and find this totally unacceptable.