You can always make a complaint through Home Office complaints department if you are not happy with their service. You can file your complaint either through phone, email or by posting it at Home Office complaints address. Here is the complaints procedure on the officical Homeoffice webpage:
You can avail all the services provided by Home Office and if you are not satisfied with the service, complain it through email at Home Office complaints email address [email protected]. You can even submit your complaint through the phone by calling at Home Office complaints contact number 0207 035 4848. You can even fax your complaint at Home Office complaints fax number 0207 035 4745. The customers can even write their complaints in detail and post it to Home Office complaints address:
Home Office, Direct communications unit, 2 Marsham Street, London SW1P 4DF
Home Office complaint calls are handled by switchboard and they will further connect you to the correct member of staff. You need to provide all the details asked by them and you will be responded within 20 working days with the valid solution. If you did not get the full response, you will be intimated about the workings on your complaint and expected time taken to provide you full response.
Here is the direct email for complaining against any issue with Home-office UK: [email protected]
You can further escalate the complaint to senior member of the staff if you are not happy and if still you did not get the solution escalate it to Parliamentary and Health Service Ombudsman. Parliamentary and Health Service Ombudsman helpline number is 0345 015 4033.