Received a letter about the revaluation of a recen...

Received a letter about the revaluation of a recently purchased property. Must then complete a survey online. It is asked, among other things, how long the house has been for sale. As a buyer, I do not necessarily have to know this information. Then I will be asked if I have had a valuation report made. I tick 'no' but must then enter a number from an appraisal report. I don't have one. After that it is impossible to send the form because the form wants me to fill in this field. No telephone number in the letter to contact. So I find online. Go call and get a friendly and helpful employee (hence an extra 'star' in the review. It appears that people are aware that this problem about valuation report is on the form. According to employee there must be a '0' or 'nine zeros "fill in. He doesn't know for sure. Get a decent 'apology'. I'm curious how many people still experience this problem before the form is modified ... ....