graemej - 9:24 am on Jan 21, 2013 (gmt 0)

"Has the SEO company improved / damaged your ratings? At present no one can say with any reasonable certainty. "

After a recess of some time I started to backlink ,just 350 backlinks with a service (no names mentioned ) and in the next 2 days a drop of 30 places from 38 to 68 ,that is according to serfox tracking!
Previous to this the site was stable in the serps for 2 months

I used 4 keywords for the anchor text and they all dropped in the serps within 2 days of each other.