When purchasing from Amazon, sometimes the Amazon seller uses Royal Mail or EVRI ! I got caught out a couple of times ,and notice the “Amazon” service deteriorating because of this . ( Not Royal Mail, but EVRI in my case) . The tell tale signs of delays and unavailable tracking ,and even stuff delivered a day later is way out of line !
I always have to double/ triple check what courier is being used .I shouldn’t have to !
I saw a big company selling speaker stands for my Sonos speakers on eBay . Good price etc. . Then I looked at the feedback and declined their offers ,because they use EVRI They lost a sale but are probably oblivious as to why . The bigger a commission gets ,the worse the customer service is imho