Tryong to top up on Tesco mobile with my monzo card, payment goes through and gets immediately refunded. This is through the Tesco 4444 number and the mobile app. Same top up works normally witha a Barclays card. Any issue with Tesco payments at the moment?
I don’t think there will be an issue with Tesco payments as there would be far more posts like this if there were - and yours is the only one to my knowledge.
Try and contact Tesco and ask them the reason they’re refunding you money. They’ll be able to look at the error code and you can take it from there.