If you do get the credit card make sure you call straight away and get it canceled. It will not effect your credit if done quickly.
Good advise for all watching along is to NEVER open credit at a timeshare tour.. IF you can't afford a down payment in CASH, you don't need it in most cases. We have a credit freeze on our credit files which makes it: 1.) hard to randomly open new credit, and 2.) it highly prevents ID theft and getting random credit set up in your name you did not open. Forget the @LifeLock type services they only put a fraud alert on your file, which for the most part is worthless.. When they try to run a credit inquiry it comes back blank.. easier to say no and walk out/
I would do a quick check of your credit files if you have not done that recently at Annualcredit.com or CreditKarma.com both are free, NO sign up for a free trial program, and you can see what is going on. Then go to the three credit agencies and do a credit freeze to help protect your good credit. Check out Clark Howard /credit freeze info
http://tinyurl.com/ybosshe5
just remember to say on top of this. One good reason to use existing credit card if do a down payment if you have 60 days to dispute the charge when you cancel and with new card you may loose that feature.