Be aware of scam websites, especially for visas.
Unfortunately, this happened to someone I know very recently. They went to apply for an ESTA (a type of US visa) and found a website that looked very official and it was first on the search engine’s results, however it was actually a website that *helps* you to apply for the visa at an incredible hike up of the price. Instead of paying $14 per person, they paid $89. It was only a few hours after that they realised it was not the official US government website. Although it actually stated on the website that it wasn’t official, you had to search for that information, which you are unlikely to do if it all seems legitimate. Fortunately, the ESTA that came through was valid but they were so angry because this ‘company’ hadn’t actually done any work but had taken so much more money.
There are many companies that do this to travellers. Their websites look official, provide all the information that you need and you receive what you wanted – but they actually haven’t done any additional work for all the money that they take from you. Be really careful and try to find an official website that provides you the links – such as an embassy or a trustworthy travellers’ website.
For your reference, here is the OFFICIAL ESTA address: https://esta.cbp.dhs.gov/esta/
THIS IS A SCAM SITE, DO NOT USE: www.us-esta-org.com