Hello! I assume the <spans> are part of the produkt name/variation combo somehow what you are trying to remove? I cannot currently replicate this, could you provide an image or something to show exactly how it looks?
As for how to fix it: There isn’t currently a filter specifically for the order summary/receipt – it just uses the orderlines’ “get_name()” method. We can add a filter here if that’s practical for you. We are adding a “strip_tags” to this in the next version; that may fix things for you.
There is a filter,
$data = apply_filters('woo_vipps_initiate_checkout_data', $data);
— which will allow you to filter the entire set of data sent to Checkout. The order summary will be in the ‘transaction’ part of this, in the ‘orderSummary’ array which again has a set of ‘orderLines’ wherein the name is stored in a ‘name’ key. A bit awkward, but if this is urgent you should be able to handle it there.