FWIW: The lvl 80 MAX is shown here for 413 crs rent (2,750 crs sale). Sending proof for the 1200 crs to WGT, you should at least get the difference back.
Can't tell about "free" rent - this is usually only twice, three times a year, and not now.
Note aside: The remaining time of rent shown when hovering over the putter in your bag is negative, -1d 13h 36m.