I've just got myself 5G internet here in the uk for £13 a month as it is just a secondary sim as im already with EE for my current phone. The issue was this £13 sim did have unlimited data but has a speed cap of 100mbps. So I've switched sims. My phone now has the speed cap as I don't need more than 100mbps when out. I did a speed test last night which was 1200mbps so i'm thrilled.