That sounds like you have a O2 Boost contract which is theoretically "unlimited" you just get throttled to ~60kbits after the cap

I have Fyve.

Yes, it's just that I don't get nearlY 60kbits when it's throttled

Doesnt aldi sell unlimited sims for like 13 euro? I've lived in Hamburg now for 7 months but still use Google Fi since its also very cheap and has yet to not work in any country I go to. But I always thought you could get something SUPER cheap in Aldi.

They have a starter set for 13€ that includes sim card and 10€ credit.

They also have an XL flat rate which includes 5,5GB LTE that costs 15€/month. So you pay like 18€ in the first month and then 15€ in the following months.

This isn't bad, but I don't get O² net where I live, so I can only use Vodafone based offerings.