Update Clickbank account with new costings for sales page x 2

I have a click bank account for two websites (landing pages). I want to change the price of the each ebook pack and have it reflect in click bank when people order the ebooks. I will also need the landing pages to have the new price reflected on the page. The site will need to be tested to ensure it is working with the new price. Both landing pages are run through the same click bank account. Landing pages were designed and set up by Our Internet Secrets. Both landing pages are wordpress sites. Landing pages are: [login to view URL] [login to view URL] Both ebooks on the sites are selling for $37 AUS, however I want to reduce this to $17 AUS. This should be a quick process, I just don't have the time. Once job has been booked I will send through click bank details. Thanks