Karen, be aware that they will only give you 7 new matches a day at most!! Even after you've paid.

Non-paying members are limited to 10 matches total, but even as a nonpaying member you can close any match you're not interested in. Please be courteous and do that - you can cite "age difference is too great" from the list of reasons that they allow you to select from. I don't know why they gave you such a wide age range preference but you can easily change it.

If you are not interested in being matched further, you can turn off the ability to be matched in the future. If you really do walk away from your account, once you've got 10 matches who are themselves inactive, you should be at your limit and not be matched anyway... but again it is a courtesy to others if you turn yourself off.