Mail sees 2 from addresses when name enabled

const sendForm = async (form) => {
    let sendRequest = new Request('https://api.mailchannels.net/tx/v1/send', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({
            personalizations: [
                {
                    to: [{ email: 'web-contactus@sbsoftware.ca' }],
                },
            ],
            from: {
                email: form.email,
                name: `${form.lname}, ${form.fname}`, // Causes an ERROR (multiple from addresses)
            },
            subject: `Contact Us - ${form.lname}, ${form.fname} (${form.subject})`,
            content: [
                {
                    type: 'text/html',
                    value: form.message,
                },
            ],
        }),
    });

    const response = await fetch(sendRequest);
    const responseText = await response.text();

    return responseText;
};

const sendForm = async (form) => {
    let sendRequest = new Request('https://api.mailchannels.net/tx/v1/send', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({
            personalizations: [
                {
                    to: [{ email: 'web-contactus@sbsoftware.ca' }],
                },
            ],
            from: {
                email: form.email,
                name: `${form.lname}, ${form.fname}`, // Causes an ERROR (multiple from addresses)
            },
            subject: `Contact Us - ${form.lname}, ${form.fname} (${form.subject})`,
            content: [
                {
                    type: 'text/html',
                    value: form.message,
                },
            ],
        }),
    });

    const response = await fetch(sendRequest);
    const responseText = await response.text();

    return responseText;
};