Where can I buy a port bay replacement?

@raoulvanbalen It's not that common for aftermarket parts manufacturers to duplicate a printed circuit board design unless there is a big demand for that as a replacement part, and it doesn't look like the port bay circuit board has met that criteria.

At this point your best bet to buy a port is to keep an eye on eBay for someone who is parting out a speaker. One seller seems to do that a lot, but unfortunately they are out of the particular card you want for your speaker.

ORIGINAL JBL Charge 3 Parts Main Board/Speaker/Battery/Charging AUX Port etc.

On the other hand, if it's just the micro USB connector itself that's damaged and the circuit board itself is still intact, you could, with a little bit of soldering skill, replace just the port. There are lots of places that sell just the connector like Amazon, eBay and AliExpress. Here's one example from Amazon.

Amazon.com: 2X Micro USB Charging Port Replacement for JBL Charge 3 Bluetooth Speaker : Electronics

If the soldering is out of your comfort zone, you may be able to find a local repair shop that can do the work; for them it should be a simple task and hopefully shouldn't cost too much.

EBay https://www.ebay.co.uk/itm/285239247127?...

The answer from Arielle Sampson is not satisfying. Where can people actually purchase a port bay?
Since the Micro USB port is nearly broken, we think we need a replacement. So where can people get that?