CLARIFICATION OVER FIXED TERM CONTRACT (NHS INTERVIEW)

Hi, guys.

I had an NHS interview today for a trainee band 5 position. I thought it went well and got a call from the interviewer today congratulating me for getting the job and said they can only offer a fixed-term contract? As opposed to what the adverts say, as it is advertised as full-time. I was also told at the beginning of the interview, “The position is a full-time position, and you can decide to choose an FTC if you do not want a full-time.

Also, the job offers visa sponsorship but said they most likely won't be able to sponsor my visa for even the fixed term period, as my visa expires in November this year. (Although she did say only HR can confirm)

A bit confused on what to do?