I was pestered by a salesperson for this company a...

I was pestered by a salesperson for this company at the McArthur Glen Outlet in Swindon. I now keep getting unwanted calls to my ex-directory number, which end as soon as I pick up the phone. If you call back on the same number, you get no response. I wouldn't deal with this company if they offered me free windows and a free conservatory. Avoid.