It's all about how you sell it. Subtle difference that make it completely different.
- No obligation 30 days free
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- No obligation 30 days free
- Sign up & get one month free
it is a bit sketchy that they don't accept amex though...
Frankly I don't know how they are still around. Since everyone with AMEX always has a back-up card there is no incentive at all for merchants to accept it.