Slow Internet Speed, signed up for 50mbps but Im getting around 7mbps

Good day, I have signed up for the LTE internet which is suppose to give me 50mbps speed, but I'm getting around 7 - 10mbps speed, which is much less. I have also moved the unit around the house. When I have signed up, I have screen grabbed where it says that my address do have the 4G and 5G Vodacom internet, but I'm experiencing slow speed. I also want to find out about my debit order, when this will go off. When this is all resolved, I will update the rating. Thanks