Impossible to cancel unwanted contract

Dear Hello Peter, I am writing on behalf of my father HG Held. Last year in July/August a person at the call centre sold my father a contract. When he received it through delivery he realised that he had been sold the incorrect contract and the one he had been sent was totally unsuitable for his needs. On the package it stated that he could cancel the contract within 7 days. Well this proved to be totally impossible to do. He contacted Telkom straight away and customer services said that he needed to cancel online. He tried several times but to no avail so within the 7 days he took the device back to a Telkom branch at Westwood. At the branch he was informed that he could not return the device there and they gave him a number to contact. I phoned for him and no matter what they told us to do online it was still impossible to conclude the cancellation. I then wrote numerous e mails to Telkom informing them of my fathers inability to cancel this contract which he has not used at all to date. Each time we were given a new option and each time it was impossible. My father then started receiving phone calls telling him that he needed to pay for the contract- these were recorded calls. He eventually got hold of another gentleman who told him to pay the R1000 and then it would be easy to cancel and was given a "win" number. He paid the R1000 and then tried again to cancel but could not use the win app as he does not have it. Once again i sent an email informing Telkom of this dilemma but to no avail the calls demanding payment continued and now he is even getting calls from collection centres of an astronomical accumulated amount! I am now at my wits end as i found it totally ludicrous and unfair that my aged dad of 79 who has poor health is being hounded and has added stress due to no fault of his own. I contacted the collection agency and forwarded all the e mails i had sent trying my best to cancel the unwanted contract which he has never used. He is now being hounded by another collection agency. I am furious that this has continued. I would like this matter to be sorted as soon as possible as it has gone on for way too long. Please feel free to contact me after hours on *** or alternatively contact my father on ***. Many thanks Jacqui Everitt