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If the site or sales pitch says there is no other alternative (which may be called 'Visa' or 'MasterCard' etc., but which basically means 'credit card of this type/system') then you will have to pay with the Paypal.com service, or find another option to buy the vibration machine.
Where are you trying to purchase it? do you need other alternatives to purchase the same thing, or a purchasing alternative that accepts credit card payment?
(For your information: Paypal.com is a reliable standard online/website service, that has been in existence and doing business for well over a decade, and you can, after registering for Paypal service, put credit into your Paypal account from a credit card, then use that credit.)