No consent given

i received a marketing email advertising a funeral policy product, what shocked me is the email contained my personal details including my I'd number which i do not rememeber giving anyone any consent to market any product witnh my personal details, its ********* what happened and after calling and being on hold for more than 10minutes and sending email no one has got back to me with an explanation as to where did you get my personal details. all i get is we will call you back within 24-48 hours, i am not a client of alex forbes and i will never be due to poor service today i called your call centre line again and they answered and it was just people talking in the background about "black friday"