Easyrentcar is good but the local service provider Europcar has lots to be desired

I changed my flight and need to contact Europcar in KLIA to change pick up time. Firstly, the phone numbers listed on Europcar website for the KLIA station is either outdated or outright wrong because when I call many times but no answer. Write to Europcar website with all the booking details Multiple times and I heard nothing back. When I posted my dilemma on Facebook, a friend who was going through KLIA was kind enough to inform Europcar ground staff of my change of pick up time, and she said change is notes and the car will be ready at the new pick up time. When I landed, the car was not ready, and they claim to have no record of the change - I ended up having to wait close to 2.5 hours before the car arrived and I ended up missing a number of appointments.

The platform is good and transparent but must make sure after sales service can support on location assistance like my current case