As of 2019, there are various benefit offices around the UK that deal with benefit enquiries via mail. Employment and Support Allowance manage this all via a central processing plant in Wolverhampton, where they are reputedly dealt with and sent to the relevant offices. Therefore, anyone looking to send a letter to the ESA office in Aberdeen will need to address it to a PO Box in Wolverhampton. However, please rest assured that the DWP (with whom we are unaffiliated) should be doing their best to get your mail enquiries through to a team that can accurately handle whatever queries or complaints that you may have.
What address should I use for Employment and Support Allowance in Aberdeen?
If you need to send a letter to ESA Aberdeen, the DWP website lists the following as the mail opening unit address that you should put on the front of your envelope
Mail Handling Site A