You can buy a replacement port for about $10 on ebay, but you will need a good SMD rework station to solder it. The port is soldered directly to the motherboard. Unless you have the equipment and experience to replace it, I would suggest taking it to someone that does.
Luckily the T470 still has the normal charging connector and a dock connector, so you can still use it. The later models can only be charged by USB.