Had similar back in Nov.. Tho mine is actually in my regular spend timeline.
Over time I was told it would 'vanish in a few days' 'be fixed in an app update in a week or so' 'would be flagged to make invisible' and finally 'might not happen'.. Support was hyper friendly and helpful, but ultimately its still there months later and none of the statements I was told actually happened.
Its of course not the end of the world.. But I wouldn't accept my regular bank doing that. End of flogging dead horses
Seems like theres some teething issues around visible and invisible refunds and initial charges.