Hopefully WGT will come up with this option VERY SOON. They have been aware of this for a long time.
We have had it happen in the past and it will continue to happen where the wrong tier enters and wins.
Club Owners need to MONITOR these tourneys closely and look at who is entering and leading.
I usually send a message to the ineligible member telling them they are disqualified, and if they retain their lead, to send a message of apology to the rightful winner as they have taken a Trophy from them.
If it was a premium tourney (Credits to enter) I ask them to gift the rightful winner balls or their choice from the pro shop as compensation.
I avoid setting them up as premiums.
I do set them up for Sleeves of balls or credits for the pro shop. in this case I am able to pay the rightful winner accordingly.