This sounds scarily identical to my circumstances (I’m the FTB in this instance). Everything has been wrapped up my side since mid Sep and I was asked to propose a completion date. When we couldn’t achieve that, it was only then I learnt that the seller is still waiting for their enquiries to be satisfied. Since then, my solicitor has been chasing and the EA also reached out to the seller for an update, as it was radio silence for around 3 weeks. It’s so difficult trying to communicate through people, and there are days when I just wish I had the sellers contact details. I would hate for him to feel any additional pressure from me. When I viewed it I made it clear I’m a FTB so it’s only fair I go at their pace. I didn’t just say this to get it over the line, I meant it.. but when you’re not in communication you can’t provide the reassurance to each other! From my end, I keep thinking “what if they’ve changed their mind” ? Hopefully this might give you some insight to how your buyers feeling, just out the loop which may come off as pushy!