My overdraft with Smile is currently £700. Of this, £337.22 is charges. They have refunded £225 (apart from the £337) so far but won't budge now.
They are harassing me into paying back the balance which I have agreed to do at £20 per month.
I wrote to them 2 weeks ago with a basic letter detailing the list of charges I want refunded and said that I felt a mutual agreement was fair in that I pay £50 p/m and they remove the charges.
They wrote to me today and said "after careful consideration"

they are taking the offer of £50 p/m repayments but "your request for a refund of other charges has been declined"
What I am hoping you guys can answer is, is there any point in me now sending the preliminary letter in the library, or should I just go straight for stage 2?
Thanks.