My account page stuck on switch in progress

About 3 months ago iwas gonna go with new 5g unbeknownst to me muly phone wasn't compatible and i also changed to the 10g of data over 4 lines but since then probably 3 months and numerous calls and chats they still cant fix my account page and therefore cannot change back yo by the gig because 10 is too much but of course o stoll pay my bill but they always get new technology and can never seem to get it right very frustrating