Dear Daniel
Thank you for your further emails and I am sorry if you are not happy with my responses. The reason I responded to your Ofcom comment, this is what was sent to us by them showing a date of December 2017 but advising your complaint is ongoing with my final response sent to you on the 26th June.
I am unable to comment why you did not receive a reply from Twitter but apologise this did not happen. Royal Mail of course do not think ignoring customers is acceptable.
I apologise that there is nothing further I can do to help and that I am unable to give you a more positive response on this occasion. I would like to take this opportunity to inform you that, if you are still unhappy with the outcome, you can ask to have your case reviewed by the Postal Review Panel, who are a body that sit outside of Royal Mail and who will conduct an unbiased review of your complaint. They can be contacted by writing to FREEPOST Postal Review Panel or by email to postalreview@royalmail.com.

Kindest Regards
Nicola Barnham
Royal Mail – Chairman and Chief Executive Office