Accepting PUT through webmethods?

I have a bank that asked for a HTTPS url to post a file to. I was just figuring it was a GET or POST using like mime or something like that for content type. It turns out they are trying to use a PUT through the HTTPS URL? Can we even do that through webmethods?

IS 8.2 has support for put.

Only 8.2? We are running 6.5 SP3.

Correct. IS has not supported put (nor delete, I believe) until now. It returns [ISC.0064.9324] Server Error: Not Implemented