Oh 'eck sounds like you're having some troubles.
I think it won't be possible to use your Raiffeisen card online, the reason being it is a bank card and is not
an international payment card like a credit / debit card brand (MasterCard, VISA, Amex, Maestro etc).
Some Swiss online shops accept Swiss bank cards but they are few and far between, and the most recognised is the PostCard from Postfinance.
International sites will certainly not accept them unfortunately - the cards are not built for international use, and that 8 digit number is meaningless to the international networks - for this reason I'd also be surprised if it will work with PayPal too.
So that's the bad news aside. Here's my attempt to help you get Swiss money onto your UK card :
First, you need to contact your UK card issuer and ask them to give you the IBAN (international account number) which will result in money being paid into your debit or credit card account.
Second, in your Raiffeisen online banking you need to find the option to make an international payment. I just looked on their website and I think you're looking for the page in the screen shot here
so it's "Zahlungen" -> "Zahlungsassistent" -> "Zahlung erfassen".
Anyway, in there you should be able to enter the payment details in the box where it mentions the 'Kontonummer' - enter the IBAN you got from your issuer, and you'll move to a page where you can enter more details, then there will be a submit button to send the payment off through the ether to your account in the UK.
Don't worry about the pink or orange slips for international payments - they are only for internal Swiss payments.