diamond resort odenza timeshare sand diego/canada Nationwide

this company offers you free trip to sit in on there time share. which i did . it took them 6 months to tell me that the trip i was suppose to get free is not available.. after  i payed for the taxes for the trip. i could go on forever about that but thats not my main complaint.  my main complaint is that after listening there presentation for 6 hours that was suppose to be only 2  hours i bought a sampler package.. but there was alot off things they did not tell me  and after sitting for 6 hours and starving they rush you throughh the paperwork at the end.. the main thing they dont tell you is, that you have to pay half of the money before you can book anything.. so 6 months later and 6 payments later and $1000 later, i have not been able to take any trip. today i called them and they said i have to pay the whole thing off before i can take any vacations.. if this is a loan shouldnt i be able to use  now? they are charging me intesrest.. they also didnt not mention u have short time period to use these point .. and they also dont tell you that you have to sit in on a presentation everytime you use the points . this thing has been the biggest scam ive ever been through i dont know how they can keep doing this to ppl. imhave to give up after spending so many hours on this..i even had to cancel my credit card. i hoping they will do the HONEST thing and refund my money since i got nothing from them!!!!