Transfer domain from one AWS account to another AWS account

I'm trying to transfer a domain name from one AWS account to another AWS account using AWS CLI. When I try to transfer the domain I get the following error:

Connect timeout on endpoint URL: "https://route53domains.eu-west-1.amazonaws.com/"

I'm using the following command to transfer the domain

aws route53domains transfer-domain-to-another-aws-account --domain-name <value> --account-id <value> --profile personal

I checked the aws config file and it looks fine. It looks like this:

[profile personal]
aws_access_key_id = somekey
aws_secret_access_key = somesecretkey
region = us-west-2

I've also made sure that the user has the correct permission. The user has the following permission

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": "route53domains:*",
            "Resource": "*"
        }
    ]
}

and also has the AdministratorAccess AWS managed policy.

To make sure I can communicate with AWS. I ran a simple command aws s3 ls --profile personal and it works. AWS responds back with the contents of S3.

The version of AWS CLI I have installed is aws-cli/2.0.18 Python/3.7.4 Darwin/19.4.0 botocore/2.0.0dev22

I'm not sure where I'm going wrong.