Can I just have some feedback?

I first got my rain sim card last year August. The speed wasn't nearly as advertised but atleast we could run 2 devices. December my internet speed reached max 0.3mbps I sent numerous emails and was just told that it's traffic. I live in a rural area and at 3am how many people are really online. Then during January and February our internet was working great reaching up to 4mbps (less than I am paying for but it was usable.) Since 1 March we couldn't use it again as the max speed we reach is 0.3mbps. I lodge various complaints via email and on the phone with no feedback. Once again we were told that we are far from a tower and the there is a lot of traffic on that tower. I checked online and saw that the tower we are connected to is about 5km from us. But there are about 6 towers within a 3km distance from us why can't we connect to them? I feel they owe me for March and December as I could not use their service. All I want is for my internet to work or at least feedback.