Ist sadlers.co.uk sicher?

This company, or the SEO company they hired spammed a link to their website on my website which I had to waste my time removing. I am sick of unethical company's that try to manipulate google's search rankings by hiring SEO companies that spam links on my sites. Below is an email we received from Sadler's SEO company after google penalized them: "Dear Webmaster, I look after the on-line presence for http://www.sadlers.co.uk/ and I need your assistance with something (I’m sure not the first request you've had of this nature, so apologies in advance!) We’ve been contacted by Google regarding some of the links back to our website. On your website, ***** there is a link to the Sadlers website. This is displayed on multiple pages on your site and we believe this may be a factor in Google contacting us. I’m very aware that these links acceptable previously and I’m sure this must be a real headache for you, but we have to try all we can now to ensure we’re in line with Google’s changing requirements . I’d be grateful if you wouldnt mind removing the link. The link can be found in a 'post' on your website here: URL: xxxxx URL Points to: http://www.sadlers.co.uk/ I would really appreciate your response on this as I’m sure you know how important ranking on Google is for business. Thanks in advance for this and if you have any questions, just let me know. Kind Regards, Cameron Parker Ricemedia Ltd No2 Fazeley Studios 191 Fazeley Street Digbeth Birmingham B5 5SE"