Royal Mail Tracked from Birmingham to South Midlands

Royal Mail Tracked parcel / mail delivery service from Birmingham to South Midlands took quite a time (5 days) although delivery is within the UK. There is some issues with the delivery saying "Mis-Sort Scan at Delivery Office". This could mean the delivery postman having trouble reading the post code or they have put it in the wrong section that result in delivering to wrong address. Below is tracking info from Royal Mail.

Item:
JK909329442GB
Service
Royal Mail Tracked™
Latest update: Good news, your item is progressing through our network and on its way.
Item JK909329442GB was forwarded to the Delivery Office on 2017-08-14.

Date Time Status Track point
15-AUG-2017 10:38 Accepted at Outward Mail Centre South Midlands Mail Centre
14-AUG-2017 07:25 Mis-Sort Scan at Delivery Office - Redirected Leamington Spa DO
14-AUG-2017 04:31 Sales Order Raised
14-AUG-2017 01:42 Accepted at Inward Mail Centre South Midlands Mail Centre
12-AUG-2017 06:39 Forwarded - MISSORTS Shirley B DO
12-AUG-2017 03:09 Accepted at Inward Mail Centre Birmingham Mail Centre
12-AUG-2017 03:09 Accepted at Inward Mail Centre Birmingham Mail Centre
11-AUG-2017 02:33 Outward RDC Volumetric Acceptance National Distribution Centre
10-AUG-2017 23:10 Pre-advice Received