We have found a house we'd like to buy and have an offer from a first time buyer for ours so we are ready to proceed. The house is listed as guide price £550k - £575k. We offered £550k yesterday and were told no other offers have been received when we viewed in the morning. The estate agent phoned me this morning to say the owner has looked at their finances and rejected the offer as it's too low. I'm slightly confused why guide price was listed at a price 'too low' as we assumed this would be the minimum acceptable offer. We don't see any point in raising our offer just because they rejected it based on price and there's no other offers at the moment. What would you do?!