Poor service telkom staff doesn't know their job

Hello I bought a phone on contract and extra SIM for data bundles online,on the 3rd of April 2019,I was then promised to to receive my phone and extra on the 15th of April of which I ended up receiving them on the 8th of May,when I receive an extra SIM card I was not happy because I was promised 500mb data for networks,2GB telkom to telkom and 3000 minutes telkom to telkom and telkom landlines,but I received 250mb and 3000 minutes is only for telkom mobiles not landlines,I then called telkom call center on the 13th May to cancel since I had 7 days to cancel and I was told to go to telkom store to cancel when I got there they said they don't deal with on line products,we tried to call call center again and we couldn't get help,I kept trying until on the 23rd of May that's when I finally got the right department of which they told me that I was late for cancellation,I told them that I've been trying to cancel but I didn't get help then they gave a number to call,I called and they told me I was late for cancellation,I told them I've been trying to cancel since the 13th then I was that the SIM card will be deactivated within 24 hours, on the 15th of June I was debited twice for the very same SIM card I that I was told that is deactivated,I called in to find out what went wrong and I was told that my contract was not canceled they got a feedback but I was not informed about the feedback,I asked to speak to the manager they put me on hold for 45 minutes until network cut me off,I tried again for another 3 days same thing until I give up.