UK Pension Income Taxable in Bahrain - Terms of Double Tax Agreement

I am British by origin, and have lived in Bahrain for the last 9 years. It is the norm in Bahrain for the residency certificate to be issued every 2 years, hence I do not have permeant residency, simply a 2 year residency which I have to renew once it expires. I am applying for an NT tax code for my UK pension income which I want to start drawing. I have residency for the period in which I am wanting to take an income from my UK pension, so I assume I will be able to get an NT code issued? The notes section of the DT-Individual Form states I just need to enclose a copy of your Bahrain certificate of residence. Which is the document with a 2 year validity. Please let me know if I can proceed on this basis.

Hi Rebecca E,
You can.
If further information is required upon receipt of your DT claim, you will be contacted accordingly.
Thank you.