Bugs and glitches in apple watch ultra 3

Hi, so i just got my ultra 2 on 22nd September and since then it has had problems, the watch faces get stuck in between changing,

Some complications on the dial would show no data some times for a long period of time or take way to much time to change if i change it on the phone app

The complications even flicker sometimes to different colours when i wake it up, and sometimes I have to move it way too much to wake it up.

the worst part is dealing with the customer care and being given wrong information about the EXPRESS REPLACEMENT SERVICE. It’s gets irritating and frustrating at one point dealing with them. Also when i got my link to pay for the replacement hold charges, it won’t accept any of my cards and talking to a senior customer service representative over email takes 48 hours.