Waste Management charged my card $457.87 for a dumpster I canceled in May. They never delivered. I got a refund in June. Then in July they took money from my account without permission. I only caught it because I check my statements. When I finally reached someone after an hour, they agreed to refund it, but they should have never taken it in the first place. Do not trust them with your payment information.
You never know when their system will have an "error" that adds money to them and silently takes from you. Do not trust them with your payment information.
Recommendation: please, don't share any payment info with this company.