I made the sale of my home in October 2020 to the ...

I made the sale of my home in October 2020 to the buyer's bank Cajamar and the qipert agency. To date I have not received the refund of the provision for the cancellation of my mortgage, in telephone contact they tell me that the cancellation deeds are in the notary's office but that the representatives of my bank to sign have not been presented, when I ask them for The notary where to go, tell me that YOU DON'T HAVE THAT DATA seriously? You do not know to which notary you have sent the documentation? Or they have not sent the documentation? I ask them for their contact email and they collect my information to contact them, we will continue to insist and if the situation is not fixed we will see how to fix it.