Yep I’ve started looking at other exchange options, but keen to see how well Peach goes when it’s released to public soon, looks like it will be a nice p2p option

Humblestacker

bitcoin

How do you fund your custodial Lightning wallet?

> my exchange I normally use does not have lightning withdrawals yet.

That's unfortunate (for them).  Consider another exchange, for moving funds from fiat into bitcoin on LN:

*Exchanges with support for Lightning Network* 
https://cointastical.github.io/Exchanges-With-LN

Otherwise there are swap methods (e.g, FixedFloat), as well (see the "crypto-to-crypto" section in the above list).

You can even use on-chain bitcoin as a payment method when "buying" bitcoin on RoboSats.   Or you can sell your on-chain bitcoin on HodlHodl and specify LN as the payment method that you would receive.