Which is exactly what I was referring to (retention)
I understand why some banks impose this retention - the paid in funds cannot be drawn on because the payee has a grace period in which to reclaim their money. But I really don't understand why the bank would refuse to accept direct debits unless a certain balance, or deposit is maintained. CAM bank of course has no money, so may be trying any desperate measures to get some in.
I would urge (and I mean with some urgency) the president / adminisrator to move the community account to another bank ASAP. If owners cannot pay by DD, many will simply have no way of paying and your community will go the way of so many others, even if it is involuntarily - down the pan for lack of funds.
This kind of blackmail by the banks is simply scandalous and should be illegal. There are enough problems in Spain with property issues already, and this kind of thing could be the nail in the coffin.
Please, speak to your president / admin and tell them they must change bank or face a disaster.