@Bitinity
At this time Coinbase and Cex.io didn't exist
(Coinbase is about 6 years old and Cex.io ~5)
@keychainX
If I remember correctly, during a time, MtGox had a card option (and even Paypal but it was removed once it started to deal with Bitcoin). It's something you could check with Archive.org. We talk about debit card right? (not credit card tied to a loan)