promise to convert already owned timeshare weeks to Los Abrigados weeks at time of Los Abrigados purchase

At the time we purchased our Jerome week we were promised that we could convert other timeshare weeks we already owned to Los Abrigados(LA) weeks.This promised was honored for several years until Myra sent a LA owner on an exchange at one of our timeshares that we had converted to a LA week.When that owner complained about the quality of the timeshare she had been sent to, Myra(LA management) unilaterally reneged on the previous promise to convert other time share weeks to LA weeks.I would like to know if anyone else has had a similar experiance with LA management.Bruce Beck 801 359 0220/bbeck7@gmail.com