I understand that you are interested in booking an appointment online and getting a discount. Here are the steps involved:

1. Call the number 0300-4738987 and ask for info4patient.
2. Tell the operator that you would like to book an online appointment and ask about the discount.
3. The operator will ask you for some basic information, such as your name, contact number, and medical history.
4. They will then provide you with a list of available appointments and the discount that is available.
5. Once you have chosen an appointment, you will need to pay the online fee.
6. On the day of your appointment, you will need to bring your lab test reports and any other relevant medical information.
7. You can make a voice call on the given time to discuss your medical history and any other questions you have.

I hope this helps! Please let me know if you have any other questions.

Thanks,