Currently in process of switching, letter of offer issued 16th March and the Salesperson is asking me to return the signed letter of offer asap. Solicitor is requesting deeds from current bank. A pack was sent to solicitor and I got sent a copy of letter of offer. Should I just sign my copy of letter of offer and send back to bank (don't have a drawdown date) or wait for the solicitor to tell me to come in and sign?