18-06-2020 13:27
18-06-2020 13:33
Have you checked with your bank?
Do other DD's process OK?
18-06-2020 19:49 - edited 18-06-2020 19:50
18-06-2020 19:49 - edited 18-06-2020 19:50
O2 used to have a problem with Monzo Direct Debits several years ago but apparently it was fixed, perhaps it has re-emerged.
There's several major companies who still have issues with Monzo DDs.
My friend used to have a problem, ended up switching to Barclays to resolve it.