Always a \oops an error occured"frustrating"""

Good evening, i am trying to add extra data online on my sim online as mentioned and advertised on your options where i can choose from. Always a oops! this frustrates me as the cell is on my business and if it gets softlocked then i have to go through typing a letterhead to to give myself authority, i pay the account/contract every month to get my phone restored. Please send any correspondence to [Email Removed] as my sim is currently in a router. Please reply asap. Email [Email Removed]