Paypal is gone wrong

When I tried to purchase your hosting service (Starter NL), I used my credit card via Paypal. I don't have Paypal account, so I tried to pay as guest.

Things was gone wrong. After I inputted card number and address, Paypal displayed another pages to input card number and address again, obstructed my payment.

I show you the details.

At first, Paypal asked my card number and address at "modern looks" webpage. URL is like this.
https://www.paypal.com/webapps/xoonboarding?country.x=[country code]&exp=guest&flow=1-P&locale.x=[locale code]&token=[tokenID]#/checkout/guest

After I tried to checkout, Paypal redirected me to "old looks" webpage, asked my card number and address again ! URL is like this.
https://www.paypal.com/cgi-bin/webscr?cmd=_express-checkout&xo_node_fallback=true&force_sa=true&fallback=1&token=[tokenID]#m

Same problem also reported from other Paypal users.

http://stackoverflow.com/questions/40160733/paypal-express-checkout-taking-credit-card-info-and-then-asking-for-it-again

Due to this incident, I had to cancel my orders three times. I have already posted ticket to sales department, but they don't reply anything. Please don't ignore it.