We purchase this timeshare 13 years ago while vacationing in San Carlos, Sonora Mx, we bought 1 weeks from ILX, which was latter bought by Diamond Resorts. Most recently we attempted to book a week in San Carlos, Sonora, Mexico. Timeshare showed no availability for a party of 6, so we decided to look at other hotels within sancarlos, several sites such as bookings.com show that Sea of Cortes Resort in San Carlos Sonora was available to the public. We thought maybe if we call they will make these 2 BR apartment available to us, but the agent rejected our request and treated us poorly, attempted to escalate to a supervisor 3 different times without success we were on hold and no supervisor will talk to us. We are obligated to pay $1200 maintenance fee per year, and this outfit charge the regular public less that what my points are worth. This outfit has consistently increase maintenance fees, we feel trap, there was a lawsuit when ILX was in control, now with Dimond Resorts we are segregated, and only able to use a handful of resorts which are hardly available even when attempting to book way in advance, consistently shows no availability. Can help but to assume there must be a concerted effort to marginized existing "owners" this outfit is a nightmare no difference a than highway robbery. Any advise by anyone experiencing similar treatment, I would think there are many in the same situation.