Hi Rebeca!
Welcome! I'm happy to see you here on stacker.news. You now have a LN address bitcoineca@stacker.news and it may be worth playing with it rather than WAS, just because stacker.news allows full-duplex zero-fees on transactions (both in and out).
Another thing is that Relai is not the only Swiss company selling bitcoin. Have a look at https://pocketbitcoin.com/ and https://www.getbittr.com/ which are very similar and let you set any random different address each time, without luring you to keep using the same account by having to use referral codes. Pocket Bitcoin takes 1.5% as default, no referral code needed, not even possible. It would be yet another way to soft KYC.
All the best!