customer_id => $sources->[0]->customer_id,
taxzone_id => $sources->[0]->customer->taxzone_id,
currency_id => $sources->[0]->customer->currency_id,
customer_id => $sources->[0]->customer_id,
taxzone_id => $sources->[0]->customer->taxzone_id,
currency_id => $sources->[0]->customer->currency_id,