It took just a month for the $50.00 one. Then I had to call about four months later on the $100.00 @ $10.00 per month for 10 months. Kinda sucks but it worked out.
Make sure you document everything, make copies of anything you mail in with detailed dates. If you call in take detailed notes of what is said and agreed upon. It took me 6 months to start seeing my account credits from earlier programs, but it took multiple calls and finally an email.