Hi there,
It seems like you’re facing a frustrating situation with your driving licence. Since you’ve been disqualified over a year ago and haven’t received the necessary paperwork, it’s best to contact DVLA directly for clarification.
For more details, you can refer to this helpful discussion: Driving Licence Issue After Totting-Up Ban.
You can ask your brother to fill out the D1 form from the post office and send it to DVLA. Along with the form, make sure you include identification, such as your passport, and proof of your previous address. If the D27 form wasn’t sent to your old address, reaching out to DVLA will be important to sort out the situation.