They gave the figure for cash at the end of Dec on the 4C at...

They gave the figure for cash at the end of Dec on the 4C at 13.8M and then another figure at the end of jan 10.2 M seems like burn had dropped down in the last month to 3.6 M against a burn for the quarter of 13.8 M (so 4.6M a month ) indicating the cash burn has decreased in the last month.
therefore they have a runway of arond 3 months before cash runs out rather than as you suggest they will be finished by end of Feb .