If you bought two plans then the second one should be stacked on your account to kick in when the first one eventually expires.
It should be listed as an upcoming membership plan on your Buy Plan page.
That means that you don't lose out.
If you still need a refund for the second plan then you'll have to contact 48 support to see if they can assist.
They don't generally monitor or respond to posts here on the Community Forum and no-one here on the forum can do anything about refunds.
If you need to contact 48 support then see the links in my signature below.
