Adults who received their second Covid jab at least three months ago can now get a booster dose.
Not only have people in person experienced long wait times, but also those who tried to book or amend Covid vaccination appointments online through the NHS National Booking System had to wait in long lines.
If you have to rearrange your appointment for a booster vaccine, here's how to do it.
You will need to first go on the NHS National Booking System website, click the link 'Book or Manage a Coronavirus (COVID-19), vaccination'.
Scroll down to the bottom and click on the "Manage my Booking" button.
You may be placed in a queue because there is so much traffic to the site at the moment.
After the appointment screen loads you will need to enter your NHS number.
You should be able cancel or alter your vaccination appointment after answering some personal information questions.