Inbound links that that get turned on and turned off

[avalon37]

The company I work for have various business partners that will link to our site during the dates when we are running a sale with them. But after the sale, they remove all links to us. Because the link is not permanent, I am guessing we are not receiving much SEO value and potentially even some harm as a result of the link being on/off. Has anyone else experienced this? Obviously the best scenario is that the links are permanent which we are working on.

[aakk9999]

Do they pages with links to you get taken down or do they leave the page, but just take a link to you down?

[avalon37]

Just the links to us get taken down after the "sale". Typically the links to us are from other website's homepages.

[bwnbwn]

Have you checked the other sites code to see if the link if a no follow?
if it is a no follow probably nothing if it doesn't have the tag then I would suspect it might throw a flag for a manual and or algo issue.