I'm so sorry for the state of your second bag! It makes it seem not worth it to have to keep in contact with the stores and repairs- I felt like a hassle walking back in. I think i've read on here a couple times the same response that everybody has had- like a uniform reply. I have no idea what to write- could you give me a clue? I've never written a complaint letter before and I'm so upset- as you must be with yours. I have the large oxblood and they don't have them on the site anymore- I know they parents will notice me with a different bag as they're the ones who bought it. I wish they had the same policy as Waitrose and gave double the credit back!
Stick to the facts in your letter. Tell them the date you received it, the date of first problem and what the problem was. Then describe contact with repairs, and let them know if you felt their response was lacking. Give date bag was sent for repair, date it came back and that they didn't contact you. Give them the date of next problem and details on what the problem was. Sum it up with mention it was a gift and then what you want. Honestly I would ask for a replacement or a full refund.
Here is a made up sample:
To Whom It May Concern:
On 12/3/14, I received a large oxblood cara bag. After only carrying the bag five times, the d-ring fell off, rendering it useless as a backpack, which was the main reason I wanted this bag. I contacted customer service on 12/10/14 and found their response was underwhelming considering Mulberry's reputation and the cost of your bags. I brought the bag to the store at (store location) on 12/13/14 and I did not hear from anyone in regards to the repair for (length of time).
On a whim I stopped at the store on 2/14/15 and my bag was ready for pick up. I was disappointed that no one contacted me to say my bag was there. I would expect better customer service when such a costly item has been found defective.
Happy to finally have my bag back, I used it for the first time since the repair in 2/15/15 and, to my dismay, it broke at a different location. The buckle from the (wherever it was from) fell off. Clearly this bag was either not properly made or there is a severe design flaw.
This bag was a gift from my parents and I would like to enjoy it for years to come. If it is possible to replace the bag in the same color and style, I would like instructions on how to complete the exchange. If that is not an option, I would like a full refund for the amount of the bag so that I may buy a quality bag from a company that will stand behind its products.
Please contact me by (insert drop dead date) or I will have my parents file a complaint under (whatever the 1979 Act is...here in the US I would be threatening them with a credit card dispute, the Better Business Bureau and bad reviews on social media including pictures of the broken bag).
***seriously though, tell your parents as the refund will likely go to their card, and tell them how worried you were about admitting their lovely gift broke.