What I am saying is that working exclusively with a single merchant carries more risks than working with several. (genedoucette.me)
I also get that it's significantly worse when one is stuck with a single merchant because of an exclusivity clause. (genedoucette.me)
See if your card issuer offers a «disposable» or one - time use card number, which still links to your account but expires after one use (or is only good for use at a single merchant). (upgradedpoints.com)