How to buy RBTC, so you can double BTC with X2

The risk is real. An exchange can eat your money and NOT give you the crypto! ...while I am complying with their KYC requests, they keep cycling me around in repeating cycles of KYC request nightmares!!

I was trying to buy a bit above 0.0011 RBTC but I hadn't over calculated enough, I should have gone with at least $62 instead of $59, which also means I should then have spend yet a higher amount at the MoonPay exchange, $3 to $5 extra would have done the trick.