The Embassy of Canada can neither provide advice on taxation matters nor answer specific questions regarding individual tax returns.
Please contact the Canada Revenue Agency (CRA):
By mail:
Canada Revenue Agency
2204 Walkley Road
Ottawa, ON
K1A 1A8
Canada
By phone: 001 613-940-8495
By fax: 001 613-941-2505
Web site: Canada Revenue Agency
Please contact the Agencia Tributaria:
By phone: 901 33 55 33
Web site: http://www.agenciatributaria.es/AEAT.internet/en_gb/Inicio.shtml