rango - 11:01 am on Mar 30, 2012 (gmt 0)
All dubious link acquiring tactics aside - why would "2 text links ads" be equivalent to "20 blog link ads"?
I'd suggest writing a single blog post with a couple of links in would be more than enough.
I mean, it's kind of fair enough that they get a link or two out of designing the site (particularly if it was stipulated in contract), but 20 in-context links?! That's really pushing it.