Since you are so confident of this, I'm sure you can provide a source to verify it. Please.
Okie dokie, though it wouldn't have been hard for you to find this yourself since it's been widely reported and is available all over the web:
RNC shoots down Texas primary change
http://www.politico.com//blogs/burns-haberman/2012/04/rnc-shoots-down-texas-primary-change-119800.html
A spokesman for the Republican National Committee said Texas would need — but not receive — a waiver from the national party to change its primary. “There is no basis for a waiver. Texas will remain a proportional state,” spokesman Sean Spicer said via Twitter.
There will be no change to the delegate distribution in Texas. It's just Santorum's campaign trying to generate excitement. The RNC will never allow it.