TB Test Certificate - Address in UK typing error

Hi guys,

Our spouse visa application hand in date is within a few days time, and I just noticed there has been a typo on the address in the UK part of the tuberculosis certificate document, the House number, street and town is correct, although the postcode is my old address, in error I had given her the wrong postcode!

1. Does this generally matter, if I provide a notice to the ECO about the error?
2. Should we get this test quickly redone to get this correctly stated?
3. Why is an address in the UK required on the TB test when my spouse has not got an official address in the UK until she becomes a resident?

Many thanks
Phil