We are selling our timeshare In Mexico through American real estate agent all paperwork is complete and they are asking for us to pay the Mexico tax up front can the money be taken from the holding account prior to being paid to us or is this a scam

We have been asking to exit for 5 years now and always get the same reply. You really have to be destitute before they will consider release. We only have 2000 points and have been told many times that we should never have been sold such a small number. We asked what would happen if we wanted to sell them and the answer was to convert to a timeshare week and then sell. Lo and behold we don’t have enough points to do so.
We are retired now and not fit enough to use the points. We have not paid the fees for 3 years and worry about the consequences.
We are not looking for money back for them we just want a release for our sanity.