Tutaj masz informacje jakie dane możesz przekazać, spróbuj przekazać {invoice_phone}
$data = array( '{firstname}' => $customer->firstname, '{lastname}' => $customer->lastname, '{email}' => $customer->email, '{delivery_company}' => $delivery->company, '{delivery_firstname}' => $delivery->firstname, '{delivery_lastname}' => $delivery->lastname, '{delivery_address1}' => $delivery->address1, '{delivery_address2}' => $delivery->address2, '{delivery_city}' => $delivery->city, '{delivery_postal_code}' => $delivery->postcode, '{delivery_country}' => $delivery->country, '{delivery_state}' => $delivery->id_state ? $delivery_state->name : '', '{delivery_phone}' => $delivery->phone, '{delivery_other}' => $delivery->other, '{invoice_company}' => $invoice->company, '{invoice_firstname}' => $invoice->firstname, '{invoice_lastname}' => $invoice->lastname, '{invoice_address2}' => $invoice->address2, '{invoice_address1}' => $invoice->address1, '{invoice_city}' => $invoice->city, '{invoice_postal_code}' => $invoice->postcode, '{invoice_country}' => $invoice->country, '{invoice_state}' => $invoice->id_state ? $invoice_state->name : '', '{invoice_phone}' => $invoice->phone, '{invoice_other}' => $invoice->other, '{order_name}' => sprintf("#%06d", intval($order->id)), '{date}' => Tools::displayDate(date('Y-m-d H:i:s'), intval($order->id_lang), 1), '{carrier}' => (strval($carrier->name) != '0' ? $carrier->name : Configuration::get('PS_SHOP_NAME')), '{payment}' => $order->payment, '{products}' => $productsList, '{discounts}' => $discountsList, '{total_paid}' => Tools::displayPrice($order->total_paid, $currency, false, false), '{total_products}' => Tools::displayPrice($order->total_paid - $order->total_shipping - $order->total_wrapping + $order->total_discounts, $currency, false, false), '{total_discounts}' => Tools::displayPrice($order->total_discounts, $currency, false, false), '{total_shipping}' => Tools::displayPrice($order->total_shipping, $currency, false, false), '{total_wrapping}' => Tools::displayPrice($order->total_wrapping, $currency, false, false));