Mobile Broadband Data Allowance Expired (instead of resetting)

[Daveo16]

Joined 3 on 20th May on Mobile Broadband Unlimited.

First bill is due to be issued on 26th May, but allowance for data now says expired instead of unlimited.

My MiFi device now can't be used due to the expired allowance. 

What's happened?

[Paddiewack · Accepted solution]

If you try your broadband it’ll work. It shows expired in the interim before it shows your renewed allowance. Slightly confusing I know but you’ll get used to it