Poor service delivery and bad aftersales

Vodacom has a hassle free easy delivery process ,however after sales suck after receiving my router on 03/03/25 which was meant to be 50 Mbps speed,( of which I had not received the speed )I have been trying to call since 12/03 due to issues could not connect to their aftersales number ***.I only received up to 4/5 mbps,. After calling them numerous times I could not connect as to cancel I needed the mobile number which is not even on the contract document. I managed to get through to customer service who did diagnosis and referred me to store ,after getting to the store,I was advised the device is not 4G but LTE hence the speed ,called Vodacom again,the automated system asks for mobile number and after being on 20 Min with automated service I was told they have 14 days cancellation policy but it will be escalated.They can see on their system I have slow speed as APN was to be updated but even after that the speed was still poor . Therefore I wanted to cancel as could not be used .I am told I need to wait another 7 days for outcome which would not guarantee cancellation .Their automated service *** has been rigged to prevent you from cancelling / complaining. They want to trick you into a 3 year contract when what you signed up for, you note getting . Firstly I want a letter of apology and my charges refunded as I've been charged pro-rata and a full month and I cannot make use of 4/5 Mbps Secondly I want them to update their automated service to be able to speak to an agent instead of the call being dropped when you never recieved a mobile number from them as your service provider