It was mailed 13 of July. It hasn’t even been one whole month let alone multiple.
Your package originated in Chongqing. You will see that this is in the interior of China. It had to travel a great distance to the port that it was sent to on the coast. Since it ended up at a port, it looks like it will be sent by a container ship. Consider yourself lucky that you won’t have to wait in a 3 month long line to get on one of the few planes leaving China. Once it gets on the boat, it could be at sea for a month give or take a few weeks.
So please, take a deep breath and understand that there are people who have ACTUALLY been waiting months. There are many, many people who still haven’t received their air mail that was posted in April/May.

Hi Adam Capon,

It's transited by train and will pass countries like Kazakhstan, Russia, Belarus and Lithuania. To my experience, it takes about another 40-60 days to be delivered.

Number: RV470503875CN
Package status: In transit
Country: China -> United Kingdom
2020-08-04 14:53, Leave the Dostek, Kazakhstan processing center.
2020-07-30 13:54, Leave the processing center of The Port of Horgos, Xinjiang.
2020-07-24 17:25, Leave the Chongqing Unity Village Center Station, China Processing Center.
2020-07-15 10:03, Chongqing, has been handed over to the airline transport.
2020-07-14 17:30, Chongqing City, leaving the Chongqing International Processing Center, the next stop ,Chongqing Exchange Station( via transfer)
2020-07-14 10:37, Chongqing City, "Chongqing International Processing Center" has been exported straight sealed.
2020-07-13 21:01, Chongqing, Chongqing International Processing Center (via transfer)
2020-07-13 20:10, Chongqing, leaving the International Small Package Business Department, next stop , Chongqing International
2020-07-13 13:58, Chongqing City, "International Small Package Business Department" has received

AD, keep your opinions to yourself. Apologies I’m not super accurate with dates. I’ve been waiting for this for a while so I have my rights to question. Chill.