Hi there, @ademide . Thank you for taking the time to reach out to the Shopify Community Forums here regarding this pick-up location situation. My name is Imogen. It’s good to meet you!
You should be able to assign specific locations as pickup locations within your Shipping Settings! We have a help document available here that you should be able to leverage. Is the issue that you have multiple locations that you’re offering pick-up from, and the desired location isn’t appearing as the first option? Do you happen to have a screenshot that you can share so we can have an idea of how things are currently appearing in checkout. We’re unable to authenticate users here in the Community, so I’m reliant on you providing that additional context for me. Thanks!