Recent experiences with your non-Chile credit cards and online purchases

Falabella/Sodimac my virtual MC number failed but since then, my physical MC number works, increible!

Another recent miracle was my Abastible medidor gas payment (I live in a condo) also “took”. Don’t know if this was a fluke as I tried paying my water bill via the supposedly same WebPay portal with zero luck.

Please post recent online purchase experiences with foreign credit card. Company, portal (MercadoPago, WebPay), any other pertinent details.

MercadoPago, the worst of the worst, I would like to hear of ANY success there.