I will see if our postal application will be successful as per guidelines on the website of South African embassy in London (re-opening on 29 March)
I managed to find marriage registration form to fill in over there so I will give it a go. it is very straightforward.
I am only confused with the supporting documents as one of them is letter of retention of South African citizenship which we just applied for simply because of soon coming British Citizenship application. It seems that is also needed for SA passport application.
I am so worried as I heard many bad experiences with the passport application. Hopefully we will receive British Passport sooner
Thank you for your response.