Vox Fixed MTN LTE-A 150-ANYTIME-SIM Contract complaint

My modem and Simcard were delivered on 23 December 2021. Service was activated on 23 December 2021. From the very first time I started using the router my speed test indicated the following information PING ms 30, DOWNLOAD Mbps 7.82, UPLOAD Mbps 0.09 When I reset my modem it improves but after ±3-5mins it again drops to speeds similar to the above. I logged a call on 23 December 2021 about this. I was phoned back on 24 December 2021 @ 10:20 by a person with the name of Gift (Not sure). After I explained my problem about the speeds etc he suggested the reset of the modem. I explained it works when you reset by thereafter it drops down to 3G speeds again. I told him that the service is supposed to be a 4G LTE service and he suggested that I reset the modem every time the speed drops. This is seriously not the way to resolve an issue like this.