I'm not sure, but I don't think you can just transfer the money to the Manilva Town Hall bank - I believe you must, initially, take the bill into your bank, here in Spain, and pay from there and then you can set up a direct debit instruction. And you will now be liable to a penalty as this should have been paid by October I think. I believe it's about 10pc.
I am open to correction as I'm not entirely sure.