I changed three lines to the new plan 20gb for $35 using the promo code 20OFFMONTHLY
two of the lines changes successfully but the third one showed that it was changed but today when I log in to my account it doesn’t show the new plan like the other two.
Note: the only difference is I paid with available credit in the account, while for the successful two lines I paid with the registered credit card.
also, the one that is not updating to the new plan shows in the payment menu that it deducted the amount of the new plan.
how can I contact support?