Post Office – Llanelli, Bryn – Opening Hours & Branch Details You can find Post Office on Gelli Road, a 1.95 mile drive east of the centre of Llanelli (near Bryn Dylan). The branch is pleased to provide service to patrons within the districts of Llwynhendy, Pemberton, Halfway, Llwynwhylwyg, Swiss Valley, Trostre, Bryn and Bigyn. Swing by today (Friday) from 9:00 am to 5:30 pm. Please see the various sections on this page for specifics on Post Office Llanelli, Bryn, including the opening hours, address info, customer experience and other information about the branch.