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[RDC]

No idea about an AU supplier, but it's a pretty common miniUSB  connector, Thru-hole, Type B, Female. There are a lot of variations of  it though, so you'll be getting out the calipers or at the very least  going thru a few datasheets until you find a suitable replacement.
 
 You could check on eBay, game stores, even yard sales and the like for  broken controllers to salvage the parts from, provided they're not torn  up as well. All versions use the same type of miniUSB connector, so it  doesn't have to be the same model number of controller, which is  meaningless anyway as that number stays the same while the board  revisions change constantly, but they still use the same type of  connector.
 
 I'd be more worried about any damage done to the board, as that will be  more difficult to repair than just replacing the connector.