Issue with mobile number and email

Hi all, I was making this call but seems when i look at the board, the mobile number shows an error and the email doesn’t show up. I would appreciate any advice on the matter

{
  "query": "mutation { create_item ( board_id: <boardid>, group_id: \"topics\", item_name: \"<Name>\", column_values:\"{\\\"what_is_your_first_name_\\\":\\\"<fname>\\\", \\\"please_enter_your_mobile_number\\\":{\\\"Phone\\\":\\\"<phone>\\\",\\\"countryShortName\\\":\\\"GB\\\",\\\"changed_at\\\":\\\"<numberdate-yyyy-mm-dd>\\\"},\\\"please_enter_your_email_address_\\\":{\\\"Email\\\":\\\"<Email>\\\",\\\"Text\\\":\\\"<Email>\\\"},\\\"submitted_at\\\": \\\"<date-yyyy-mm-dd>\\\", \\\"description\\\":\\\"<description>\\\"}\") {id,name}}"
}

I noticed that it was changing in the api itself but not displayed in the board