To change the telephone number provided in an order you have already placed:
• If the order is still in progress, that is to say, it is labelled as "Confirmed", you can modify it by selecting the order in question from My Orders > Select the order > Contact Number > Edit
• If the order is "in preparation" or "on its way": You can get in touch with us via our chat by clicking "Open chat" in Help tab or over the phone on our toll-free Mercadona customer support line 800 500 220.
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