If you can't pay a lightning invoice then you'll have to buy credits. You can pay with another lightning wallet if you have one.
Magma is a central marketplace for buying liquidity and channels to your lightning node.
I can't get a lightning wallet if I can't get a lightning wallet :)
Use https://BancoLibre.com and referral code "fire" and you'll then be lightning compatible.
So I'm needed some kind of boostraping then? I was looking into looping because I can send on-chain funds for channel open. Also no KYC or smart phone for me.