Hello friends, me again after a long time

i mostly use aliexpress standard shipping now as i see is 30 days mark waiting time

for some time i switched for yanwen less steps than china post (works great so far but is a long wait)

however this serial perplexes me S0000000XXXXXXXX (cheap item the x are numbers) it belong to yanwen air mail seems i cant track it after the pickup? i have another which is starting LP at it left malesia (did the china honk kong malaysia italy route) need to wait 2 weeks or a bit more to arrive

any clue the first code what it is?

Update i figured out myself is 4PX Singapore Post OM Pro just needed a bit of research if anyone is interested; the seller maybe put the wrong carrier info