The Unmarried Partner visa is a different visa to the Finace(e) and is issued for 33 months. Just like a spouse visa the holder may take up employment and does not have the restrictions of the Finance(e) such a short period of 6 months with an intention to marry and apply for FLR
Please do double check with UKVI as it seems that timi was requested (incorrectly IMO) under duress from VFS