This is the link which I sent you the other day which is a great aide if you are filling out the electronic order form:
https://thegenealogycorner.files.wordpress.com/2017/03/how-to-order-a-spanish-death-certificate-from-the-spanish-registry-office.pdfTaking on board the key details that should be included on any request for a copy of a death reg, these are the details your friend should consider including in her letter with her request. More info is required because she does not have a copy of the death cert or the references for it:
Full name of her mother, including maiden name.
Her maternal grandparents' full names
Her dad's full details
When and where her mother was born
What details she has on her mother's death. Death, date, place etc.
The fact that her mother was cremated on the Island
Your friend's full details to include:
Her full name
Correspondence address
Telephone number, including international dialing code for the UK
Email address if she has one
Passport number and where/when issued.
She needs to state:
That she would like the Certificate to be posted to her to the address she has given
That she would like a 'literal' copy of the Certificate. This is a stamped photocopy of the original certificate
We are on hand to help where we can
I am bilingual with Spanish and can help with any translations, although I think dealing with Tenerife, many people speak English fluently really.
Monica