Telemarketer ******ing Elderly

A telemarketer phoned my elderly father, upgrading a contract. (He hasn't been using it for a while but that is besides the point). My parents tried phoning back the number numerous times to cancel the upgrade ever since the call. They were even told that they would phone them back, which obviously never happened. They were simply sent from pillar to post. Now that 2 weeks has passed, they claim that they can't do anything and say that he has already upgraded.

This is ridiculous! It is appalling to ****** elderly people! To wait 2 weeks to give an answer is either unprofessional or *******. You decide!

I do realise that this is not Telkom per se, but if they choose to use this company as a service provider it needs to reflect on them too. Please do something about this!