It can take a few weeks as the website says 60 days but the VFS representative said that we can apply OCI once we have applied and completed the process by visiting VFS Goswell. The receipt of the submission is legit.

yes, correct they are not the same.
I went for my OCI appointment today and I have been told to apply for RENUNCIATION OF INDIAN CITIZENSHIP here: https://indiancitizenshiponline.nic.in/Renounce
It costs an additional Rs.8000 and it has to be paid online in INR as per the website.

Hey Guys, I would like to share my experience with the new process using Standard Postal Service. My timelines were. Application date: 23rd Jan 2019 Biometric date: 26th Jan 2019 Standard service of up to 8 weeks UKVCAS (new service) No follow up or escalation. No Acknowledgment letter/update letter...