Normally you will be using this 'Pay any Amount' button for one of these reasons:

• you are buying something that is not listed on the website, e.g. a bespoke picture frame
• you are buying something that is on the website but at a different price from normal e.g. at a discount (charity or quantity)
• you are paying extra shipping charges e.g. you live outside the UK

You will therefore have already agreed with PhotosOnThings what you are buying and at what price, and there is no need for you to try to add any item from the rest of the site to your shopping cart.
The "Pay any Amount" facility allows you to enter whole pounds only. When you click on the button, you will be taken to a WorldPay page to enter the no. of pounds you are paying - so for example Qty 20 at Price £1.00 = Total £20.00. You cannot change the description of the item from "Any Item", but you have already agreed with us what you are buying.
You will then be taken to the WorldPay payment page, where you will be asked for your credit card details.
NOTE THAT WORLDPAY IS A SECURE PAYMENT FACILITY.
You can pay by Visa, Mastercard, Discover, American Express, Switch or Solo.