Other useful phrases 'Asking politely'

       EXAMPLE: Could you tell me... ?

       EXAMPLE: I would be grateful if you could ...

       EXAMPLE: I would be interested in having more details about...

       EXAMPLE: I would like to know if/when/when/...

       EXAMPLE: I would like information on...

       EXAMPLE: Do you know if...?

Useful phrases 'Making a Complaint'

       EXAMPLE: I would like to complain about + noun or -ing

       EXAMPLE: ... is not what I expected/was expecting

       EXAMPLE: I am not satisfied with...

       EXAMPLE: I would be grateful if my money was refunded / if you could give me a refund

Reference list

Learning English 'FCE Formal Letter' Retrieved from http://www.rubenvalero.com/english/content/fce-formal-letter-or-email

Oxford Living Dictionaries 'Choose the right greeting and sign off'. Retrieved from https://en.oxforddictionaries.com/writing-help/choose-the-right-greeting-and-sign-off

Oxford University Press 'Sample formal letter' ["PDF file] Retrieved from https://oup.useremarkable.com/production/images/uploads/3687/original/uk_sample_formal-letter.pdf