There's nothing in the style guide or writing for GOV.UK about please and thank you but I think there used to be. I remember something that said something about use these sparingly as they obstruct and make us sound like we’re begging.
Henry HApply for a visa: Your application is still in the queue. We'll look at your application by mid January 2016. If successful, you'll get your visa by early February 2016.
Tell DVLA about your medical condition: We're waiting for more information from your GP. We'll let you know when they have provided it. You can still drive if you get permission from your doctor.
Tell DVLA about your medical condition: Your application is still in the queue. We'll look at your application by mid December. If approved, you'll get your licence by late December. You can still drive if you get permission from your doctor.
Henry HClaim Carer's Allowance: Your claim is approved. You'll receive your first payment on Thursday. Your claimant number is 1234 5678.
Claim Carer's Allowance: Your claim was rejected. You can't get Carer's Allowance if you care for someone less than 35 hours a week. You can claim Carer's Credit if you care for someone over 20 hours a week: www.gov.uk/carers-credit