In most cases a bank transfer is the best option. For those outside the UK, I also a have WiseAccount with details in your local currency.
Details in this PDF
For the document password use the website name.
You can also make simple payments by Credit Card or Apple Pay or Google Pay directly to my Starling Bank account with this link: https://settleup.starlingbank.com/jonathannorridge
The above method is preferable, but if it is a problem you can use PayPal payments using the link below (adjust figure as you desire)