Unacceptable Sales Practice

I recently purchased a Samsung A53 as I needed to new phone. Upon purchase I was told that the 2-pin charger is no longer supp**** as the cable provided is a USB cable and will work on the old charger. I used the phone till the battery required to be charge when inspecting the cable it is not the normal USB. Both ends of it is the newer pin type. My previous Samsung is an A7 (2018), and therefore the adapter USB does not work. Its fine that from a Sales point of view we lose functionality of the 3.5mm jack but now to having to buy an adapter to charge our phone is unacceptable. When a phone is bought it is expected that all components are there to allow for the necessary use.