Unable to change my plan

I keep trying to change my plan due to the pandemic, $80 a month is just really rough for me to pay right now. I want to go to the lower $44 plan but every time I try to update it the page goes into an error page telling me to contact an admin if it keeps doing it. I've tried doing the process over 8 times or so and I'm still unable to change my plan. Can someone help me out?