Royal Mail registered mail delivery time to Belgium

Parcels was shipped via Royal Mail registered mail service from GREENFORD UK on the 22 Aug 2017 and delivered to the destination address in STAMANDS Belgium on the 24 Aug 2017 which took only 2 days delivery time. Below is tracking info from Royal Mail UK and Belgium Post (bpost)

Royal Mail Tracking
Item:
RS440049263GB
Service
International Tracked & Signed
Latest update: Delivery attempted
A delivery was attempted for your item with reference RS440049263GB in BELGIUM before 11:53 on 24/08/17.
Date Time Status Track point
24/08/17 11:53 UNDELIVEREDMISSED DELIVERY BELGIUM
23/08/17 16:10 ARRIVED IN COUNTRYGENT X BELGIUM GENT X BELGIUM
22/08/17 23:26 ARRIVED (MDN) AT HEATHROW WORLDWIDE DC
22/08/17 20:53 ON ITS WAY TOHEATHROW WORLDWIDE DC GREENFORD MAIL CENTRE
22/08/17 20:44 ITEM COLLECTED GREENFORD MAIL CENTRE

Belgium Post Tracking

Your registered letter Barcode bpost: RS440049263GB

Your registered letter was delivered today at 12:28.
Date Time Status Location
26/08/2017 12:28 Item delivered ST-AMANDS
25/08/2017 09:42 Item available at pickup point ST-AMANDS
24/08/2017 11:53 Item presented : addressee absent - message left in addressee's letterbox BORNEM MAIL
24/08/2017 07:03 Item in distribution phase BORNEM MAIL
23/08/2017 16:10 Arrival at international office of exchange BEGNEA
23/08/2017 05:15 Item released from customs GBLALA