Thank you so much for your reply. @AmazonianX

Which letter are you referring to? As I understand, the BRP needs to be collected from the local post office and does not gets posted to the sponsor's address.

Hi, My wife has applied for spouse visa from outside the UK and I am a British citizen and her sponsor. In the application, we have provided my current UK address (along with the flat inspection report etc), however my tenancy ends in 2 months and I can not renew my tenancy due to high rent. Hence ...