Just got scammed by Yell.com after spending 420 GBP per month on PPC advertising campaign. I was enticed into spending my hard earned cash with them to promote our website at 3signs.co.uk - a niche site selling health and safety signs & stickers, after month 1 I raised my concerns - they did not listen to what we were selling then created wasteful ads on the wrong keywords that were irrelevant to what we sold. After my initial complaint, they rebuilt the campaign - taking a further 2 more weeks. They enabled call logging using a special number - but yet to receive my first call. Their stats are reporting 11k impressions and 160 clicks to my site over two months, but no sales conversions yet :( Very disappointing as my own Google PPC campaign with a 100GBP monthly spend generated more sales and clicks. Requested a full refund and cancelled the direct debit, if this is not received so I'll be invoicing them for this shocking ordeal. AVOID them at all cost if you have a niche website, they suggested a retargeting campaign after the third or fourth complaint, still waiting to see the results on this. They are very slow to respond to my enquiries, the sales rep Nicky Morgan pulled out of my scheduled meetings. In fact, we've never met again since I first signed up three months ago now. Thing again before wasting your money with Yell.com!