Tax refund Mistake

You need original documentation directly addressed to you personally and to your UK address from the Spanish tax authorities before you consider doing anything. Wait until you receive them, don’t go looking for them.

How do I contact PM Maria de Castor ? 

If you look at the last subject post "Fight keeps going! Costaluz Lawyers won cases in 2018 and 2019" you will be able to see Marias name and contact her from there.

Thank you all for your advice I have spoken to the lawyer in Spain who dealt with the my tax refund  and have been advised to pay the money back into their account and they will sort out the tax office mistake thus avoiding intrest on the money 

Just a thought but don’t you still need proof from your solicitor,( a copy of official demand of the original amounts with interest identified separately) from the Hacienda, to ensure that this is indeed a legitimate request relating to the demand of monies? 

rysteig. You say your solicitor wants you to pay the overpayment of tax money back into their account to avoid interest, but you have already been charged interest of 3450€ on the amount of £2837  (Should that have been euro's i.e. 2837€).

As ads has just said you need the correct proof from your solicitor...Better still the Spanish tax man,  to confirm this money is honestly owed....Or....And.....

Whats stopping you from contacting the Spanish tax office via letter, email, or any other means, after all you do stand to gain if you don't owe this money. 

Sorry but with what you have mentioned on here about this amount, and the way your solicitor is acting they are the last people I would be handing over money to, owing it or not.

Reading through all this it certainly sounds a little fishy somewhere.