Telkom : Service Provider From Hell

on 21 February 2021 ,I gave Telkom Carnival Mall a cancelation notice effective 31March 2021. I am migrating to another fibre service provider. Despite numerous visits to this branch, the East Rand Mall branch and their Call Centre they have failed to de-activate their service on Openserve as a result my new service provider cannot install their fibre . On 30 April they passed a debit order and on 1 May discontinued internet services to my house. Every time I call I have to use my data. Their favorite line is :"we will escalate to our IT people and you will be sorted in 48 hours. They have been "escalating to IT" for 3 months in a row.