Tesco charged me twice

[Ordog]

Also, see this very recent explanation from someone who works at Monzo:

Tesco double charged me?

This is a Tesco and their card acquirer sadly as @Ordog has said. We have tried resolving these issues but their acquirer doesn’t seem to fix the issues no matter how often we request this through Mastercard or directly to Tesco themselves. Some Tesco stores are aware of the fact that they present for the payment under a new authorisation code (causing a double payment) and will try and help you and refund it quicker. Others will just blame us and we need to collect enough evidence to raise a d…