Time Electronics Design Engineer interview questions

I had direct communication with one of the directors on Indeed. Communication was friendly and prompt, with an informal interview being scheduled for three weeks time from initial contact, however an earlier date was also proposed by the company. Interview went very well and company seemed to do some great work, and I was offered the job. There were issues in the job offer that was sent through that weren't mentioned within the interview, and there seemed to be an expectation/understanding of 'goodwill overtime' to gain sick pay that wasn't mentioned either.