Buying a Mullvad scratch card is probably the most practical anonymous method. Usually the fact that you are using Mullvad at all isn't a secret (your ISPs can see you connecting), so outside of a very overcomplicated scenario where Amazon/$yourlocaltechstore are colluding with Mullvad to track individual scratch cards, it's fine.
Mailing cash in an anonymous envelope has a certain charm, but OTOH I have consistently had terrible experiences with the Swedish postal service and that seems to be a widespread opinion.
- They have strong commitment to open source and have put their finances into that in addition to releasing code.
- They are doing a lot in terms of transparent infrastructure: https://mullvad.net/en/blog/2022/1/12/diskless-infrastructur...
> Also why would I trust them over Google?
For Google your data is the product, for Mullvad you pay for a service.