Webafrica LTE Deal horrible speed

I have received my 100GB LTE package from Webafrica on the 12th of November 2018. I have plugged it in and after an hour the light turned blue. I have tested the internet speed and i am getting 1MB download and 1mb up. i have opened a ticket and they have asked me to reset the router and leave it on for 48 hours. After 48 hours i have tested and my speed is still the same, sometimes even worse. I cannot work as this is too slow for the work i am required to do. i have logged on to the router and i and getting 4 bars out of 5, Sometimes i get 5/5 bars. I have logged another ticket with webafrica and they have asked to to do an online test and send it to them. Which i have done. They have then told me that since LTE is signal based they cannot guarantee speeds. I honestly think this due to the congestion as i am getting full signal according the the signal bar. If this fault was due to signal i should be getting 1 bar.