New contract with unstable 5g download speeds

Good day

I currently have a Vodacom 5G 100mbps internet contract, which i received on the 3rd of October 2025

The router always has full signal 5G connectivity and I also have a direct connection via Ethernet cable. However, I've noticed some weird behaviour: • I am subscribed to an up to 100mbps connection, speed tests spike initially OVER 150mbps and even into the 9m120mbps range, and slowly drop over the course of the test to around 100mbps as advertised by the contract. • I've noticed that some DIRECT download speeds sometimes go past 100mbps However, the speeds fluctuate wildly, to the point where the download speed drops to 0mbps and then suddenly up to 100mbps and sometimes higher. This huge up and down pattern occurs continuously. • In certain case such as on goodle meet ,ms teams calls, the connection from my side drops randomly. I have tried multiple times to contact customer with regards to this but that was no help. My contract with vodacom is only one day old. I would like to cancel as I am not receiving the service i paid for. This is highly disappointing.