Contact their store manager directly
as long as it has not been installed..they should have no problem refunding your money…that’s waht those “clearance” tables are all about.
If you need assistance…I have a few contacts at the big boxes…feel free to e-mail me
Phil

You can cancel, and that would give them the right to sue you for breach of contract. You would then be responsible for the damages they incurred up to that point (i.e. costs of specialty materials that can’t be used for other projects, etc.), or loss of profit if the contractor hasn’t made any expenditures yet.

Try to settle this before it goes any further. Offer a small sum of money in exchange for their agreement releasing you from the contract.

Talk to them again & explain & ask if you can arrange payments for the installation.Good luck

The 3 day “cooling off” period is your only chance to cancel the contract. You may be able to talk with the company and pay any material and labor fees they have already incurred. Otherwise, you are bound by the contract.