So things moved pretty fast for me in the last few days. After quite a bit of moping around and feeling dejected, I decided to call the lender directly last week, bypassing the mortgage adviser, as I wanted to get an understanding as to what options might be available moving forward. I explained the situation about having paid the reservation fees, having the government funding in place, etc etc. Lo and behold, I receive a call on Friday from my mortgage adviser saying that everything was now proceeding, they just need to wait until the survey can be done. I now have it in writing. Also my boss called at the end of last week and said they are hoping to have me and my colleagues back in the business from the start of June. The 80% of salary is a pain but I'd rather have it than none. Suffice to say I got fairly plastered at the weekend.
A massive relief, almost there on both fronts. Thanks also for the support I got on here, much appreciated