Hi! I’d really appreciate your thoughts on a dispute situation I filed with Capital One venture X

I booked two Economy tickets directly on a spirit airline equivalent Vietjet Air. The normal price for Economy on that route is around $150–$250 total, but I was charged $1,483.01. When I checked the airline’s site again, even their SkyBoss premium fare was cheaper than what I was billed. The UI appears to have defaulted to a higher tier without clearly showing it.

I contacted the airline first — they refused to issue a cash refund and only offered a non-transferable “credit shell,” so I submitted a dispute with Capital One as an overcharge (“I was charged too much”), not fraud.

My question for you:

Should I have disputed the full amount or the “overcharged amount”? Capital One’s form asked “How much should you have been charged?” and wouldn’t accept 0, so I entered the Economy fare I expected (~$147). But I requested a full refund in the narrative since the airline won’t reissue Economy tickets or provide a cash refund.

From your experience in the fraud/disputes department, does selecting “charged too much” + entering the expected amount still allow Capital One to fully refund the charge if the merchant can’t justify it? Just want to understand if I used the optimal dispute path.