Property Advice: I went sale agreed. Why is the process taking so long?

A common issue is the delay in obtaining deeds from banks, which can often take several weeks. Be sure to keep in contact with your solicitor and estate agent during this time.
I went sale agreed on a house six weeks ago. I wanted to move swiftly, so I immediately got a survey done and contacted my solicitor. The solicitor told me the other day that she hasn’t received any correspondence from the vendor’s solicitor yet. I am very concerned as I am currently renting and have to move out of the property in five weeks. My question is why is the process taking so long? Is there an issue? What would you advise me to do? Thanks, Rory