Modem And Data Card

I purchased a modem with a data card from Vodacom on 25 May 2021. The card with the modem was delivered to my home address within 3 days. When I went to Vodacom to activate my card the technician told me that I do not have 20 GIG of data on the card but only 10GIG during the day and 10 GIG from midnight. I immediately cancelled the contract on 29 May 2021 which was within the cool off period. Now I am waiting for a month to get Vodacom to collect the modem, which I have not used. I am not allowed to take the modem and data card to the nearest Vodacom store, they have to collect it from my home, how ridiculous?. In the mean time I have to pay the device and data as Vodacom does not cancel the contract if the device was not picked up from my home, only then they consider it as cancelled. It is very, very bad service, they were quick to deliver the device but I have to wait a month for them to collect it. I have made several calls to Vodacom already, wanted to speak to a manager but they refuse and TRY to help which did not bring me any further to resolve/cancel this contract. If someone from Vodacom calls me ever again for any contract update or selling anything, I will just put the phone down because if that is the way they assist paying clients who made use of their service for more than 10 years I do not want to deal with them. What more do you have to do to cancel a contract which was within the cool off period? Maatjie Prinsloo ***