L1B Visa: Trap or reality??

I have received an official communication to initiate the process of L1B visa. I have heard rumours that companies initiate and help you in getting the visa but when it comes to actually sending you to US they delay the travel by 3 months citing budget constraints.

Anybody have heard or experienced this in their organisation?

P.S. On the sidelines, I have secured and offer letter which is 2X my current CTC.

I wanted to hear from this community, what would you do in this case? Considering L1B rumours mighty be some strategy to retain employees.