The "FT People on WeChat" group
Our group chat is comprised of FT members and friends of FT members. We talk about pretty much anything except for politics (because Papa Bear has the ability to watch over us). The group has its own QR code, but it has a short shelf life (e.g. about 5 days), so I'm not including it here. The easiest way to join is to add me as a contact (moondogsh) and let me put you in the group.

Contacting Tencent Customer Support
If you want to get in touch with Tencent customer service (e.g. to update your passport number or change your name format so it aligns with your bank accounts), most web resources will advise you to simply message the "WeChat Team" contact. It is extremely difficult to get a human response when using this approach. Calling them also results in a bot experience.

However, the following drill works as of July 2022 (specific menu options can always change, of course; the key is getting yourself to step 5 below):
1. Dial 95716 (or +86 4009100100 from outside of China)
2. Select option 1 for personal accounts
3. Enter your connected phone number followed by #
3. Select option 2 for other questions
4. The bot will ask you to describe your issue using voice; just speak to it in English; it won't understand and will ask you to repeat 3-5 times before giving up
5. Now, the bot will give you ~8 menu options; through trial and error, I can state that option 7 is good for immediate transfer to a human (some of the others might work as well)
6. When the representative picks up, you definitely need to speak Chinese, but your request is presumably fairly easy to convey, and their responses are also pretty simple
7. They might want to move the conversation over to WeChat; this is okay because they will send you an invite to a special customer service queue, which is only ~60% automated