A few months ago my husband and I saw a house for sale in our dream area. Then disappeared off Rightmove but then it came back. When it did we went to view the property and got ourselves a mortgage in principle on the Saturday. By Tuesday our house (the one we live in) was on the market, within 24 hours we had 6 viewings booked. I checked on Rightmove at the property we want and it said sold subject to contract! I panicked and called the estate agent and asked can I make an offer? She replied no they've accepted an offer already so that's it. After that the estate agent who is selling my house rang me to booking another viewing and I mentioned this to him, he said the by law the estate agent has to present all offers to the vendor before exchange of contracts. He advised that I just put a full ask offer in. He also said that based on the interest in our house in the short amount of time it had been on the market, he was almost certain we would be getting an offer within 7 days. So this is where I am now.
I want to put an offer in and so does my husband but as of this very moment we do not have an offer on the table for our home, but we are convinced that we will. I've written a draught letter to the vendor which is basically a begging letter explaining how this is our dream home & our dream area. Also we have said that offer is not survey dependent and that we will be buying the house no matter what.
My question is should I lie in the short-term that I have an offer on my property just to strengthen my case (who would know it's not true?) or hang on and send my letter to the vendor further down the line when the new buyers will be even more invested?
Please help 