If you want to get a custom text on your BUY-button, you may add the following script to your page:

<script type="text/javascript">
    (function() {
        var nodes = document.querySelectorAll(".ddr-widget__shopify-product .ddr-shopify-product__button a div"),
            text = 'YOUROWNTEXT';
        for (var i = 0; i < nodes.length; i++) {
            nodes[i].innerHTML = text;

Change the text = 'YOUROWNTEXT'; string to what is needed and that's it. You'll have whatever you want on your BUY-button.

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