Any method to transfer my internet from my house to office. Distance is 2.88km and is within eyesight. Which setup i need to buy?

Haha, my house dont have unifi, i only have 8mbps streamyx and no unifi here, my office more worst, 1mbps internet only and the 1mbps not even achieved 1mbps speed, only 700kbps only. So very difficult to do GST and other online transaction. so plan to do transfer the internet to my office. For budget, sure as cheap as posible lol

My office area dont have any other internet provider beside TM, so there is no other solution.

Have but with only e only, not even 3g... haiz