smart meter message saying top up unsuccessful. i think it was paid on 09/09/2]26 at 10.51 am in linwood post office.

Put £20 in on wed 09/09/2026 and another £20 in on 11/09/2026 my smart meter is showing £11.55. I got a message on my smart meter saying top up unsuccessful, I've had to go away for a few days and I don't understand where all this credit is going. On Universal Credit and can't afford the meter not to accept it when ive physically walked to the post office as the Ovo app doesn't seem to recognise my postcode.