Some further timeline information regarding receiving my COPR which some may find useful:
15/Jan/2023: Received RFV message
After this, I immediately reached out to London VAC to find out how to pay their fees because their website does not make this clear. Found out that they wanted me to send a bank transfer, take a screenshot of it from my online banking, print that out and send it to them in the post.
19/Jan/2023: Sent photos, passport scans, proof of payment and printout of RFV email to VAC.
30/Jan/2023: Received an automated message saying my decision envelope had been received my the VAC and would be sent to me the same day.
06/Feb/2023: COPR hadn't arrived yet, so I asked VAC what's the hold up
07/Feb/2023: They said they'd send it
09/Feb/2023: COPRs arrive. Wife's COPR was fine, but mine incorrectly listed my marital status as single and also had the country of residence wrong. I sent an email to the VAC asking what to do. They told me to contact the High Commission in London, which I did using the webform and asked them to treat it as urgent.
10/Feb/2023: High Commission replied and told me to return the incorrect COPR to the VAC, but they said I wouldn't have to sent my wife's COPR since this one was correct.
13/Feb/2023: I sent my COPR and printout of the High Commission email back to the VAC.
22/Feb/2023: VAC sent me an email saying they received the COPR and would send it to the High Commission.
24/Feb/2023: High Commission sent me an email saying that they've received the COPR, but contrary to what they said earlier they do need my wife's COPR back as well. They said to send it directly to them, bypassing the VAC. I sent it immediately.
02/Mar/2023: Received the corrected COPRs back at last.
In my correspondence with the VAC, I found that the were very difficult to deal with and often sent me emails written in incomprehensible broken English which meant I had to send several emails just to get a clear answer to simple questions. Also, their system for receiving payments sounded like something a Nigerian Prince would ask for. Anyway it's done now and we're ready to go. Plane tickets booked for the end of the month; wife's very excited and we can't wait to go.