Airpod Pro Serial Number Question

So I either lost or someone stole my right ear airpod. I don’t know if this is normal but the missing airpod serial starts differently compared to my case and left airpod. I mean for chrissakes my PS4 shows up and “what is this about section.” Maybe I bought knock off‘s I don’t know. Or someone maybe switch them out. It’s really stupid that I can’t figure out what the actual serial number for the AirPods were when I purchased them. For all I know they’ve been switched out and somebody lost the right one or something I don’t know.

ex.

Case- H32

Left airpod H32

Missing Right Airpod H33

is that normal? I don’t know what to do I bought them from target. I don’t want to accuse people in my house if someone else stole it or if I really lost it.