UVC (universal vacation club) guest certificate trouble

[.Marlak]

Hi all, this is my first posting on the forum and the first time I rented our timeshare. We are members of UVC. The issue is after I paid for the guest certificate at UVC the club sent me a guest certificate with our name still on the reservation. The club said they have a new system and can’t change the reservation to the guest name because of a programming glitch and not to worry about it. So I called the resort (del arco) 48 hours after the issued guest certificate and talked with the front desk and asked them if my guest’s name was on the reservation, it was not however our name was still on the reservation. I called the club back and they said the front desk at the resort won’t know the guests name and member services would. We always have checked in at the front desk not member services. I am concerned that my guest will show up and not be allowed to check in because their name is not on the reservation. This is Mexico and can be confusing