Can I pay for an upgrade using Paypal?

No you can not.

We used to use Paypal, but on January 15th, 2004 Paypal froze our account and or assets without a warning or even informing us (adgrunts trying to upgrade spotted it). It seems that this Opium perfume advert we posted three years before even talking to Paypal had suddenly offended someone and Paypal quickly labeled us porn-peddlers. This poster is sold as a poster on other websites with the help of Paypal proving that Paypal are as irregular and inconsistent in their account freezes as they are when trying to perform a transaction (their services could be called "spotty" at best). Expensive to boot, we wish to have nothing to do with them anymore and suggest that you don't trust them with your money either - as their terms of service actually spells out that they have to right to freeze your funds for whenever the hell they feel like it without warning. I'd trust a shopaholic at Bergdorf Goodman's sale with my money sooner than I'd trust Paypal.

As BrandonBarr put it: "When the people who control the money feel they can also control culture, we're all in trouble."

You can upgrade with your VISA or Mastercard or your collected Brownie points. These are your options.